genesis 1
genesis 2
genesis 3
genesis 4
genesis 5 #include "headers.h"
genesis 6 #include "checkpoints.h"
genesis 7 #include "db.h"
genesis 8 #include "net.h"
genesis 9 #include "init.h"
genesis 10 #include <boost/filesystem.hpp>
genesis 11 #include <boost/filesystem/fstream.hpp>
genesis 12
mod6_manifest 13
makefiles 14
genesis 15 using namespace std;
genesis 16 using namespace boost;
genesis 17
genesis 18
genesis 19
genesis 20
genesis 21
programmable-vers... 22 int VERSION = DEFAULT_CLIENT_VERSION;
programmable-vers... 23
genesis 24 CCriticalSection cs_setpwalletRegistered;
genesis 25 set<CWallet*> setpwalletRegistered;
genesis 26
genesis 27 CCriticalSection cs_main;
genesis 28
genesis 29 static map<uint256, CTransaction> mapTransactions;
genesis 30 CCriticalSection cs_mapTransactions;
genesis 31 unsigned int nTransactionsUpdated = 0;
genesis 32 map<COutPoint, CInPoint> mapNextTx;
genesis 33
genesis 34 map<uint256, CBlockIndex*> mapBlockIndex;
genesis 35 uint256 hashGenesisBlock("0x000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f");
genesis 36 static CBigNum bnProofOfWorkLimit(~uint256(0) >> 32);
genesis 37 CBlockIndex* pindexGenesisBlock = NULL;
genesis 38 int nBestHeight = -1;
genesis 39 CBigNum bnBestChainWork = 0;
genesis 40 CBigNum bnBestInvalidWork = 0;
genesis 41 uint256 hashBestChain = 0;
genesis 42 CBlockIndex* pindexBest = NULL;
genesis 43 int64 nTimeBestReceived = 0;
genesis 44
genesis 45 CMedianFilter<int> cPeerBlockCounts(5, 0);
genesis 46
genesis 47
genesis 48
genesis 49 double dHashesPerSec;
genesis 50 int64 nHPSTimerStart;
genesis 51
genesis 52
genesis 53 int fGenerateBitcoins = false;
genesis 54 int64 nTransactionFee = 0;
genesis 55 int fLimitProcessors = false;
genesis 56 int nLimitProcessors = 1;
genesis 57 int fMinimizeToTray = true;
genesis 58 int fMinimizeOnClose = true;
genesis 59
genesis 60
genesis 61
genesis 62
genesis 63
genesis 64
genesis 65
genesis 66
genesis 67
genesis 68
genesis 69 void RegisterWallet(CWallet* pwalletIn)
genesis 70 {
genesis 71 CRITICAL_BLOCK(cs_setpwalletRegistered)
genesis 72 {
genesis 73 setpwalletRegistered.insert(pwalletIn);
genesis 74 }
genesis 75 }
genesis 76
genesis 77 void UnregisterWallet(CWallet* pwalletIn)
genesis 78 {
genesis 79 CRITICAL_BLOCK(cs_setpwalletRegistered)
genesis 80 {
genesis 81 setpwalletRegistered.erase(pwalletIn);
genesis 82 }
genesis 83 }
genesis 84
genesis 85
genesis 86 bool static IsFromMe(CTransaction& tx)
genesis 87 {
genesis 88 BOOST_FOREACH(CWallet* pwallet, setpwalletRegistered)
genesis 89 if (pwallet->IsFromMe(tx))
genesis 90 return true;
genesis 91 return false;
genesis 92 }
genesis 93
genesis 94
genesis 95 bool static GetTransaction(const uint256& hashTx, CWalletTx& wtx)
genesis 96 {
genesis 97 BOOST_FOREACH(CWallet* pwallet, setpwalletRegistered)
genesis 98 if (pwallet->GetTransaction(hashTx,wtx))
genesis 99 return true;
genesis 100 return false;
genesis 101 }
genesis 102
genesis 103
genesis 104 void static EraseFromWallets(uint256 hash)
genesis 105 {
genesis 106 BOOST_FOREACH(CWallet* pwallet, setpwalletRegistered)
genesis 107 pwallet->EraseFromWallet(hash);
genesis 108 }
genesis 109
genesis 110
genesis 111 void static SyncWithWallets(const CTransaction& tx, const CBlock* pblock = NULL, bool fUpdate = false)
genesis 112 {
genesis 113 BOOST_FOREACH(CWallet* pwallet, setpwalletRegistered)
genesis 114 pwallet->AddToWalletIfInvolvingMe(tx, pblock, fUpdate);
genesis 115 }
genesis 116
genesis 117
genesis 118 void static SetBestChain(const CBlockLocator& loc)
genesis 119 {
genesis 120 BOOST_FOREACH(CWallet* pwallet, setpwalletRegistered)
genesis 121 pwallet->SetBestChain(loc);
genesis 122 }
genesis 123
genesis 124
genesis 125 void static UpdatedTransaction(const uint256& hashTx)
genesis 126 {
genesis 127 BOOST_FOREACH(CWallet* pwallet, setpwalletRegistered)
genesis 128 pwallet->UpdatedTransaction(hashTx);
genesis 129 }
genesis 130
genesis 131
genesis 132 void static PrintWallets(const CBlock& block)
genesis 133 {
genesis 134 BOOST_FOREACH(CWallet* pwallet, setpwalletRegistered)
genesis 135 pwallet->PrintWallet(block);
genesis 136 }
genesis 137
genesis 138
genesis 139 void static Inventory(const uint256& hash)
genesis 140 {
genesis 141 BOOST_FOREACH(CWallet* pwallet, setpwalletRegistered)
genesis 142 pwallet->Inventory(hash);
genesis 143 }
genesis 144
genesis 145
genesis 146 void static ResendWalletTransactions()
genesis 147 {
genesis 148 BOOST_FOREACH(CWallet* pwallet, setpwalletRegistered)
genesis 149 pwallet->ResendWalletTransactions();
genesis 150 }
genesis 151
genesis 152
genesis 153
genesis 154
genesis 155
genesis 156
genesis 157
genesis 158 bool CTransaction::ReadFromDisk(CTxDB& txdb, COutPoint prevout, CTxIndex& txindexRet)
genesis 159 {
genesis 160 SetNull();
genesis 161 if (!txdb.ReadTxIndex(prevout.hash, txindexRet))
genesis 162 return false;
genesis 163 if (!ReadFromDisk(txindexRet.pos))
genesis 164 return false;
genesis 165 if (prevout.n >= vout.size())
genesis 166 {
genesis 167 SetNull();
genesis 168 return false;
genesis 169 }
genesis 170 return true;
genesis 171 }
genesis 172
genesis 173 bool CTransaction::ReadFromDisk(CTxDB& txdb, COutPoint prevout)
genesis 174 {
genesis 175 CTxIndex txindex;
genesis 176 return ReadFromDisk(txdb, prevout, txindex);
genesis 177 }
genesis 178
genesis 179 bool CTransaction::ReadFromDisk(COutPoint prevout)
genesis 180 {
genesis 181 CTxDB txdb("r");
genesis 182 CTxIndex txindex;
genesis 183 return ReadFromDisk(txdb, prevout, txindex);
genesis 184 }
genesis 185
genesis 186
genesis 187
genesis 188 int CMerkleTx::SetMerkleBranch(const CBlock* pblock)
genesis 189 {
genesis 190 if (fClient)
genesis 191 {
genesis 192 if (hashBlock == 0)
genesis 193 return 0;
genesis 194 }
genesis 195 else
genesis 196 {
genesis 197 CBlock blockTmp;
genesis 198 if (pblock == NULL)
genesis 199 {
genesis 200
genesis 201 CTxIndex txindex;
genesis 202 if (!CTxDB("r").ReadTxIndex(GetHash(), txindex))
genesis 203 return 0;
genesis 204 if (!blockTmp.ReadFromDisk(txindex.pos.nFile, txindex.pos.nBlockPos))
genesis 205 return 0;
genesis 206 pblock = &blockTmp;
genesis 207 }
genesis 208
genesis 209
genesis 210 hashBlock = pblock->GetHash();
genesis 211
genesis 212
genesis 213 for (nIndex = 0; nIndex < pblock->vtx.size(); nIndex++)
genesis 214 if (pblock->vtx[nIndex] == *(CTransaction*)this)
genesis 215 break;
genesis 216 if (nIndex == pblock->vtx.size())
genesis 217 {
genesis 218 vMerkleBranch.clear();
genesis 219 nIndex = -1;
genesis 220 printf("ERROR: SetMerkleBranch() : couldn't find tx in block\n");
genesis 221 return 0;
genesis 222 }
genesis 223
genesis 224
genesis 225 vMerkleBranch = pblock->GetMerkleBranch(nIndex);
genesis 226 }
genesis 227
genesis 228
genesis 229 map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(hashBlock);
genesis 230 if (mi == mapBlockIndex.end())
genesis 231 return 0;
genesis 232 CBlockIndex* pindex = (*mi).second;
genesis 233 if (!pindex || !pindex->IsInMainChain())
genesis 234 return 0;
genesis 235
genesis 236 return pindexBest->nHeight - pindex->nHeight + 1;
genesis 237 }
genesis 238
genesis 239
genesis 240
genesis 241
genesis 242
genesis 243
genesis 244
genesis 245 bool CTransaction::CheckTransaction() const
genesis 246 {
genesis 247
genesis 248 if (vin.empty())
genesis 249 return DoS(10, error("CTransaction::CheckTransaction() : vin empty"));
genesis 250 if (vout.empty())
genesis 251 return DoS(10, error("CTransaction::CheckTransaction() : vout empty"));
genesis 252
genesis 253 if (::GetSerializeSize(*this, SER_NETWORK) > MAX_BLOCK_SIZE)
genesis 254 return DoS(100, error("CTransaction::CheckTransaction() : size limits failed"));
genesis 255
genesis 256
genesis 257 int64 nValueOut = 0;
genesis 258 BOOST_FOREACH(const CTxOut& txout, vout)
genesis 259 {
genesis 260 if (txout.nValue < 0)
genesis 261 return DoS(100, error("CTransaction::CheckTransaction() : txout.nValue negative"));
genesis 262 if (txout.nValue > MAX_MONEY)
genesis 263 return DoS(100, error("CTransaction::CheckTransaction() : txout.nValue too high"));
genesis 264 nValueOut += txout.nValue;
genesis 265 if (!MoneyRange(nValueOut))
genesis 266 return DoS(100, error("CTransaction::CheckTransaction() : txout total out of range"));
genesis 267 }
genesis 268
genesis 269
genesis 270 set<COutPoint> vInOutPoints;
genesis 271 BOOST_FOREACH(const CTxIn& txin, vin)
genesis 272 {
genesis 273 if (vInOutPoints.count(txin.prevout))
genesis 274 return false;
genesis 275 vInOutPoints.insert(txin.prevout);
genesis 276 }
genesis 277
genesis 278 if (IsCoinBase())
genesis 279 {
genesis 280 if (vin[0].scriptSig.size() < 2 || vin[0].scriptSig.size() > 100)
genesis 281 return DoS(100, error("CTransaction::CheckTransaction() : coinbase script size"));
genesis 282 }
genesis 283 else
genesis 284 {
genesis 285 BOOST_FOREACH(const CTxIn& txin, vin)
genesis 286 if (txin.prevout.IsNull())
genesis 287 return DoS(10, error("CTransaction::CheckTransaction() : prevout is null"));
genesis 288 }
genesis 289
genesis 290 return true;
genesis 291 }
genesis 292
genesis 293 bool CTransaction::AcceptToMemoryPool(CTxDB& txdb, bool fCheckInputs, bool* pfMissingInputs)
genesis 294 {
genesis 295 if (pfMissingInputs)
genesis 296 *pfMissingInputs = false;
genesis 297
genesis 298 if (!CheckTransaction())
genesis 299 return error("AcceptToMemoryPool() : CheckTransaction failed");
genesis 300
genesis 301
genesis 302 if (IsCoinBase())
genesis 303 return DoS(100, error("AcceptToMemoryPool() : coinbase as individual tx"));
genesis 304
genesis 305
genesis 306 if ((int64)nLockTime > INT_MAX)
genesis 307 return error("AcceptToMemoryPool() : not accepting nLockTime beyond 2038 yet");
genesis 308
genesis 309
genesis 310 unsigned int nSize = ::GetSerializeSize(*this, SER_NETWORK);
genesis 311
genesis 312
genesis 313
genesis 314
genesis 315 if (GetSigOpCount() > nSize / 34 || nSize < 100)
genesis 316 return error("AcceptToMemoryPool() : transaction with out-of-bounds SigOpCount");
genesis 317
asciilifeform_let... 318
asciilifeform_let... 319 if (!IsStandard())
genesis 320 return error("AcceptToMemoryPool() : nonstandard transaction type");
genesis 321
genesis 322
genesis 323 uint256 hash = GetHash();
genesis 324 CRITICAL_BLOCK(cs_mapTransactions)
genesis 325 if (mapTransactions.count(hash))
genesis 326 return false;
genesis 327 if (fCheckInputs)
genesis 328 if (txdb.ContainsTx(hash))
genesis 329 return false;
genesis 330
genesis 331
genesis 332 CTransaction* ptxOld = NULL;
genesis 333 for (int i = 0; i < vin.size(); i++)
genesis 334 {
genesis 335 COutPoint outpoint = vin[i].prevout;
genesis 336 if (mapNextTx.count(outpoint))
genesis 337 {
genesis 338
genesis 339 return false;
genesis 340
genesis 341
genesis 342 if (i != 0)
genesis 343 return false;
genesis 344 ptxOld = mapNextTx[outpoint].ptx;
genesis 345 if (ptxOld->IsFinal())
genesis 346 return false;
genesis 347 if (!IsNewerThan(*ptxOld))
genesis 348 return false;
genesis 349 for (int i = 0; i < vin.size(); i++)
genesis 350 {
genesis 351 COutPoint outpoint = vin[i].prevout;
genesis 352 if (!mapNextTx.count(outpoint) || mapNextTx[outpoint].ptx != ptxOld)
genesis 353 return false;
genesis 354 }
genesis 355 break;
genesis 356 }
genesis 357 }
genesis 358
genesis 359 if (fCheckInputs)
genesis 360 {
genesis 361
genesis 362 map<uint256, CTxIndex> mapUnused;
genesis 363 int64 nFees = 0;
genesis 364 bool fInvalid = false;
genesis 365 if (!ConnectInputs(txdb, mapUnused, CDiskTxPos(1,1,1), pindexBest, nFees, false, false, 0, fInvalid))
genesis 366 {
genesis 367 if (fInvalid)
mod6_excise_hash_... 368 return error("AcceptToMemoryPool() : FetchInputs found invalid tx %s", hash.ToString().c_str());
mod6_excise_hash_... 369 return error("AcceptToMemoryPool() : ConnectInputs failed %s", hash.ToString().c_str());
genesis 370 }
genesis 371
genesis 372
genesis 373 if (nFees < GetMinFee(1000, true, true))
genesis 374 return error("AcceptToMemoryPool() : not enough fees");
genesis 375
genesis 376
genesis 377
genesis 378
genesis 379 if (nFees < MIN_RELAY_TX_FEE)
genesis 380 {
genesis 381 static CCriticalSection cs;
genesis 382 static double dFreeCount;
genesis 383 static int64 nLastTime;
genesis 384 int64 nNow = GetTime();
genesis 385
genesis 386 CRITICAL_BLOCK(cs)
genesis 387 {
genesis 388
genesis 389 dFreeCount *= pow(1.0 - 1.0/600.0, (double)(nNow - nLastTime));
genesis 390 nLastTime = nNow;
genesis 391
genesis 392
genesis 393 if (dFreeCount > GetArg("-limitfreerelay", 15)*10*1000 && !IsFromMe(*this))
genesis 394 return error("AcceptToMemoryPool() : free transaction rejected by rate limiter");
genesis 395 if (fDebug)
genesis 396 printf("Rate limit dFreeCount: %g => %g\n", dFreeCount, dFreeCount+nSize);
genesis 397 dFreeCount += nSize;
genesis 398 }
genesis 399 }
genesis 400 }
genesis 401
genesis 402
genesis 403 CRITICAL_BLOCK(cs_mapTransactions)
genesis 404 {
genesis 405 if (ptxOld)
genesis 406 {
genesis 407 printf("AcceptToMemoryPool() : replacing tx %s with new version\n", ptxOld->GetHash().ToString().c_str());
genesis 408 ptxOld->RemoveFromMemoryPool();
genesis 409 }
genesis 410 AddToMemoryPoolUnchecked();
genesis 411 }
genesis 412
genesis 413
genesis 414
genesis 415 if (ptxOld)
genesis 416 EraseFromWallets(ptxOld->GetHash());
genesis 417
mod6_excise_hash_... 418 printf("AcceptToMemoryPool(): accepted %s\n", hash.ToString().c_str());
genesis 419 return true;
genesis 420 }
genesis 421
genesis 422 bool CTransaction::AcceptToMemoryPool(bool fCheckInputs, bool* pfMissingInputs)
genesis 423 {
genesis 424 CTxDB txdb("r");
genesis 425 return AcceptToMemoryPool(txdb, fCheckInputs, pfMissingInputs);
genesis 426 }
genesis 427
genesis 428 bool CTransaction::AddToMemoryPoolUnchecked()
genesis 429 {
genesis 430
genesis 431
genesis 432 CRITICAL_BLOCK(cs_mapTransactions)
genesis 433 {
genesis 434 uint256 hash = GetHash();
genesis 435 mapTransactions[hash] = *this;
genesis 436 for (int i = 0; i < vin.size(); i++)
genesis 437 mapNextTx[vin[i].prevout] = CInPoint(&mapTransactions[hash], i);
genesis 438 nTransactionsUpdated++;
genesis 439 }
genesis 440 return true;
genesis 441 }
genesis 442
genesis 443
genesis 444 bool CTransaction::RemoveFromMemoryPool()
genesis 445 {
genesis 446
genesis 447 CRITICAL_BLOCK(cs_mapTransactions)
genesis 448 {
genesis 449 BOOST_FOREACH(const CTxIn& txin, vin)
genesis 450 mapNextTx.erase(txin.prevout);
genesis 451 mapTransactions.erase(GetHash());
genesis 452 nTransactionsUpdated++;
genesis 453 }
genesis 454 return true;
genesis 455 }
genesis 456
genesis 457
genesis 458
genesis 459
genesis 460
genesis 461
genesis 462 int CMerkleTx::GetDepthInMainChain(int& nHeightRet) const
genesis 463 {
genesis 464 if (hashBlock == 0 || nIndex == -1)
genesis 465 return 0;
genesis 466
genesis 467
genesis 468 map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(hashBlock);
genesis 469 if (mi == mapBlockIndex.end())
genesis 470 return 0;
genesis 471 CBlockIndex* pindex = (*mi).second;
genesis 472 if (!pindex || !pindex->IsInMainChain())
genesis 473 return 0;
genesis 474
genesis 475
genesis 476 if (!fMerkleVerified)
genesis 477 {
genesis 478 if (CBlock::CheckMerkleBranch(GetHash(), vMerkleBranch, nIndex) != pindex->hashMerkleRoot)
genesis 479 return 0;
genesis 480 fMerkleVerified = true;
genesis 481 }
genesis 482
genesis 483 nHeightRet = pindex->nHeight;
genesis 484 return pindexBest->nHeight - pindex->nHeight + 1;
genesis 485 }
genesis 486
genesis 487
genesis 488 int CMerkleTx::GetBlocksToMaturity() const
genesis 489 {
genesis 490 if (!IsCoinBase())
genesis 491 return 0;
genesis 492 return max(0, (COINBASE_MATURITY+20) - GetDepthInMainChain());
genesis 493 }
genesis 494
genesis 495
genesis 496 bool CMerkleTx::AcceptToMemoryPool(CTxDB& txdb, bool fCheckInputs)
genesis 497 {
genesis 498 if (fClient)
genesis 499 {
genesis 500 if (!IsInMainChain() && !ClientConnectInputs())
genesis 501 return false;
genesis 502 return CTransaction::AcceptToMemoryPool(txdb, false);
genesis 503 }
genesis 504 else
genesis 505 {
genesis 506 return CTransaction::AcceptToMemoryPool(txdb, fCheckInputs);
genesis 507 }
genesis 508 }
genesis 509
genesis 510 bool CMerkleTx::AcceptToMemoryPool()
genesis 511 {
genesis 512 CTxDB txdb("r");
genesis 513 return AcceptToMemoryPool(txdb);
genesis 514 }
genesis 515
genesis 516
genesis 517
genesis 518 bool CWalletTx::AcceptWalletTransaction(CTxDB& txdb, bool fCheckInputs)
genesis 519 {
genesis 520 CRITICAL_BLOCK(cs_mapTransactions)
genesis 521 {
genesis 522
genesis 523 BOOST_FOREACH(CMerkleTx& tx, vtxPrev)
genesis 524 {
genesis 525 if (!tx.IsCoinBase())
genesis 526 {
genesis 527 uint256 hash = tx.GetHash();
genesis 528 if (!mapTransactions.count(hash) && !txdb.ContainsTx(hash))
genesis 529 tx.AcceptToMemoryPool(txdb, fCheckInputs);
genesis 530 }
genesis 531 }
genesis 532 return AcceptToMemoryPool(txdb, fCheckInputs);
genesis 533 }
genesis 534 return false;
genesis 535 }
genesis 536
genesis 537 bool CWalletTx::AcceptWalletTransaction()
genesis 538 {
genesis 539 CTxDB txdb("r");
genesis 540 return AcceptWalletTransaction(txdb);
genesis 541 }
genesis 542
genesis 543 int CTxIndex::GetDepthInMainChain() const
genesis 544 {
genesis 545
genesis 546 CBlock block;
genesis 547 if (!block.ReadFromDisk(pos.nFile, pos.nBlockPos, false))
genesis 548 return 0;
genesis 549
genesis 550 map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(block.GetHash());
genesis 551 if (mi == mapBlockIndex.end())
genesis 552 return 0;
genesis 553 CBlockIndex* pindex = (*mi).second;
genesis 554 if (!pindex || !pindex->IsInMainChain())
genesis 555 return 0;
genesis 556 return 1 + nBestHeight - pindex->nHeight;
genesis 557 }
genesis 558
genesis 559
genesis 560
genesis 561
genesis 562
genesis 563
genesis 564
genesis 565
genesis 566
genesis 567
genesis 568
genesis 569
genesis 570
genesis 571
genesis 572
genesis 573 bool CBlock::ReadFromDisk(const CBlockIndex* pindex, bool fReadTransactions)
genesis 574 {
genesis 575 if (!fReadTransactions)
genesis 576 {
genesis 577 *this = pindex->GetBlockHeader();
genesis 578 return true;
genesis 579 }
genesis 580 if (!ReadFromDisk(pindex->nFile, pindex->nBlockPos, fReadTransactions))
genesis 581 return false;
genesis 582 if (GetHash() != pindex->GetBlockHash())
genesis 583 return error("CBlock::ReadFromDisk() : GetHash() doesn't match index");
genesis 584 return true;
genesis 585 }
genesis 586
genesis 587 int64 static GetBlockValue(int nHeight, int64 nFees)
genesis 588 {
genesis 589 int64 nSubsidy = 50 * COIN;
genesis 590
genesis 591
genesis 592 nSubsidy >>= (nHeight / 210000);
genesis 593
genesis 594 return nSubsidy + nFees;
genesis 595 }
genesis 596
genesis 597 static const int64 nTargetTimespan = 14 * 24 * 60 * 60;
genesis 598 static const int64 nTargetSpacing = 10 * 60;
genesis 599 static const int64 nInterval = nTargetTimespan / nTargetSpacing;
genesis 600
genesis 601
genesis 602
genesis 603
genesis 604
genesis 605 unsigned int ComputeMinWork(unsigned int nBase, int64 nTime)
genesis 606 {
genesis 607 CBigNum bnResult;
genesis 608 bnResult.SetCompact(nBase);
genesis 609 while (nTime > 0 && bnResult < bnProofOfWorkLimit)
genesis 610 {
genesis 611
genesis 612 bnResult *= 4;
genesis 613
genesis 614 nTime -= nTargetTimespan*4;
genesis 615 }
genesis 616 if (bnResult > bnProofOfWorkLimit)
genesis 617 bnResult = bnProofOfWorkLimit;
genesis 618 return bnResult.GetCompact();
genesis 619 }
genesis 620
genesis 621 unsigned int static GetNextWorkRequired(const CBlockIndex* pindexLast, const CBlock *pblock)
genesis 622 {
genesis 623 unsigned int nProofOfWorkLimit = bnProofOfWorkLimit.GetCompact();
genesis 624
genesis 625
genesis 626 if (pindexLast == NULL)
genesis 627 return nProofOfWorkLimit;
genesis 628
genesis 629
genesis 630 if ((pindexLast->nHeight+1) % nInterval != 0)
genesis 631 {
genesis 632 return pindexLast->nBits;
genesis 633 }
genesis 634
genesis 635
genesis 636 const CBlockIndex* pindexFirst = pindexLast;
genesis 637 for (int i = 0; pindexFirst && i < nInterval-1; i++)
genesis 638 pindexFirst = pindexFirst->pprev;
genesis 639 assert(pindexFirst);
genesis 640
genesis 641
genesis 642 int64 nActualTimespan = pindexLast->GetBlockTime() - pindexFirst->GetBlockTime();
genesis 643 printf(" nActualTimespan = %"PRI64d" before bounds\n", nActualTimespan);
genesis 644 if (nActualTimespan < nTargetTimespan/4)
genesis 645 nActualTimespan = nTargetTimespan/4;
genesis 646 if (nActualTimespan > nTargetTimespan*4)
genesis 647 nActualTimespan = nTargetTimespan*4;
genesis 648
genesis 649
genesis 650 CBigNum bnNew;
genesis 651 bnNew.SetCompact(pindexLast->nBits);
genesis 652 bnNew *= nActualTimespan;
genesis 653 bnNew /= nTargetTimespan;
genesis 654
genesis 655 if (bnNew > bnProofOfWorkLimit)
genesis 656 bnNew = bnProofOfWorkLimit;
genesis 657
genesis 658
genesis 659 printf("GetNextWorkRequired RETARGET\n");
genesis 660 printf("nTargetTimespan = %"PRI64d" nActualTimespan = %"PRI64d"\n", nTargetTimespan, nActualTimespan);
genesis 661 printf("Before: %08x %s\n", pindexLast->nBits, CBigNum().SetCompact(pindexLast->nBits).getuint256().ToString().c_str());
genesis 662 printf("After: %08x %s\n", bnNew.GetCompact(), bnNew.getuint256().ToString().c_str());
genesis 663
genesis 664 return bnNew.GetCompact();
genesis 665 }
genesis 666
genesis 667 bool CheckProofOfWork(uint256 hash, unsigned int nBits)
genesis 668 {
genesis 669 CBigNum bnTarget;
genesis 670 bnTarget.SetCompact(nBits);
genesis 671
genesis 672
genesis 673 if (bnTarget <= 0 || bnTarget > bnProofOfWorkLimit)
genesis 674 return error("CheckProofOfWork() : nBits below minimum work");
genesis 675
genesis 676
genesis 677 if (hash > bnTarget.getuint256())
genesis 678 return error("CheckProofOfWork() : hash doesn't match nBits");
genesis 679
genesis 680 return true;
genesis 681 }
genesis 682
genesis 683
genesis 684 int GetNumBlocksOfPeers()
genesis 685 {
genesis 686 return std::max(cPeerBlockCounts.median(), Checkpoints::GetTotalBlocksEstimate());
genesis 687 }
genesis 688
genesis 689 bool IsInitialBlockDownload()
genesis 690 {
genesis 691 if (pindexBest == NULL || nBestHeight < Checkpoints::GetTotalBlocksEstimate())
genesis 692 return true;
genesis 693 static int64 nLastUpdate;
genesis 694 static CBlockIndex* pindexLastBest;
genesis 695 if (pindexBest != pindexLastBest)
genesis 696 {
genesis 697 pindexLastBest = pindexBest;
genesis 698 nLastUpdate = GetTime();
genesis 699 }
genesis 700 return (GetTime() - nLastUpdate < 10 &&
genesis 701 pindexBest->GetBlockTime() < GetTime() - 24 * 60 * 60);
genesis 702 }
genesis 703
genesis 704 void static InvalidChainFound(CBlockIndex* pindexNew)
genesis 705 {
genesis 706 if (pindexNew->bnChainWork > bnBestInvalidWork)
genesis 707 {
genesis 708 bnBestInvalidWork = pindexNew->bnChainWork;
genesis 709 CTxDB().WriteBestInvalidWork(bnBestInvalidWork);
genesis 710 MainFrameRepaint();
genesis 711 }
mod6_excise_hash_... 712 printf("InvalidChainFound: invalid block=%s height=%d work=%s\n", pindexNew->GetBlockHash().ToString().c_str(), pindexNew->nHeight, pindexNew->bnChainWork.ToString().c_str());
mod6_excise_hash_... 713 printf("InvalidChainFound: current best=%s height=%d work=%s\n", hashBestChain.ToString().c_str(), nBestHeight, bnBestChainWork.ToString().c_str());
genesis 714 if (pindexBest && bnBestInvalidWork > bnBestChainWork + pindexBest->GetBlockWork() * 6)
genesis 715 printf("InvalidChainFound: WARNING: Displayed transactions may not be correct! You may need to upgrade, or other nodes may need to upgrade.\n");
genesis 716 }
genesis 717
genesis 718
genesis 719
genesis 720
genesis 721
genesis 722
genesis 723
genesis 724
genesis 725
genesis 726
genesis 727
genesis 728 bool CTransaction::DisconnectInputs(CTxDB& txdb)
genesis 729 {
genesis 730
genesis 731 if (!IsCoinBase())
genesis 732 {
genesis 733 BOOST_FOREACH(const CTxIn& txin, vin)
genesis 734 {
genesis 735 COutPoint prevout = txin.prevout;
genesis 736
genesis 737
genesis 738 CTxIndex txindex;
genesis 739 if (!txdb.ReadTxIndex(prevout.hash, txindex))
genesis 740 return error("DisconnectInputs() : ReadTxIndex failed");
genesis 741
genesis 742 if (prevout.n >= txindex.vSpent.size())
genesis 743 return error("DisconnectInputs() : prevout.n out of range");
genesis 744
genesis 745
genesis 746 txindex.vSpent[prevout.n].SetNull();
genesis 747
genesis 748
genesis 749 if (!txdb.UpdateTxIndex(prevout.hash, txindex))
genesis 750 return error("DisconnectInputs() : UpdateTxIndex failed");
genesis 751 }
genesis 752 }
genesis 753
genesis 754
genesis 755
genesis 756
genesis 757
genesis 758 txdb.EraseTxIndex(*this);
genesis 759
genesis 760 return true;
genesis 761 }
genesis 762
genesis 763
genesis 764 bool CTransaction::ConnectInputs(CTxDB& txdb, map<uint256, CTxIndex>& mapTestPool, CDiskTxPos posThisTx,
genesis 765 CBlockIndex* pindexBlock, int64& nFees, bool fBlock, bool fMiner, int64 nMinFee,
genesis 766 bool& fInvalid)
genesis 767 {
genesis 768
genesis 769
genesis 770
genesis 771
genesis 772 fInvalid = false;
genesis 773
genesis 774
genesis 775
genesis 776
genesis 777
genesis 778 if (!IsCoinBase())
genesis 779 {
genesis 780 int64 nValueIn = 0;
genesis 781 for (int i = 0; i < vin.size(); i++)
genesis 782 {
genesis 783 COutPoint prevout = vin[i].prevout;
genesis 784
genesis 785
genesis 786 CTxIndex txindex;
genesis 787 bool fFound = true;
genesis 788 if ((fBlock || fMiner) && mapTestPool.count(prevout.hash))
genesis 789 {
genesis 790
genesis 791 txindex = mapTestPool[prevout.hash];
genesis 792 }
genesis 793 else
genesis 794 {
genesis 795
genesis 796 fFound = txdb.ReadTxIndex(prevout.hash, txindex);
genesis 797 }
genesis 798 if (!fFound && (fBlock || fMiner))
mod6_excise_hash_... 799 return fMiner ? false : error("ConnectInputs() : %s prev tx %s index entry not found", GetHash().ToString().c_str(), prevout.hash.ToString().c_str());
genesis 800
genesis 801
genesis 802 CTransaction txPrev;
genesis 803 if (!fFound || txindex.pos == CDiskTxPos(1,1,1))
genesis 804 {
genesis 805
genesis 806 CRITICAL_BLOCK(cs_mapTransactions)
genesis 807 {
genesis 808 if (!mapTransactions.count(prevout.hash))
mod6_excise_hash_... 809 return error("ConnectInputs() : %s mapTransactions prev not found %s", GetHash().ToString().c_str(), prevout.hash.ToString().c_str());
genesis 810 txPrev = mapTransactions[prevout.hash];
genesis 811 }
genesis 812 if (!fFound)
genesis 813 txindex.vSpent.resize(txPrev.vout.size());
genesis 814 }
genesis 815 else
genesis 816 {
genesis 817
genesis 818 if (!txPrev.ReadFromDisk(txindex.pos))
mod6_excise_hash_... 819 return error("ConnectInputs() : %s ReadFromDisk prev tx %s failed", GetHash().ToString().c_str(), prevout.hash.ToString().c_str());
genesis 820 }
genesis 821
genesis 822 if (prevout.n >= txPrev.vout.size() || prevout.n >= txindex.vSpent.size())
genesis 823 {
genesis 824
genesis 825
genesis 826 fInvalid = true;
mod6_excise_hash_... 827 return DoS(100, error("ConnectInputs() : %s prevout.n out of range %d %d %d prev tx %s\n%s", GetHash().ToString().c_str(), prevout.n, txPrev.vout.size(), txindex.vSpent.size(), prevout.hash.ToString().c_str(), txPrev.ToString().c_str()));
genesis 828 }
genesis 829
genesis 830
genesis 831 if (txPrev.IsCoinBase())
genesis 832 for (CBlockIndex* pindex = pindexBlock; pindex && pindexBlock->nHeight - pindex->nHeight < COINBASE_MATURITY; pindex = pindex->pprev)
genesis 833 if (pindex->nBlockPos == txindex.pos.nBlockPos && pindex->nFile == txindex.pos.nFile)
genesis 834 return error("ConnectInputs() : tried to spend coinbase at depth %d", pindexBlock->nHeight - pindex->nHeight);
genesis 835
genesis 836
genesis 837
genesis 838
asciilifeform_add... 839 if (fVerifyAll || (!(fBlock && (nBestHeight < Checkpoints::GetTotalBlocksEstimate()))))
genesis 840
genesis 841 if (!VerifySignature(txPrev, *this, i))
mod6_excise_hash_... 842 return DoS(100,error("ConnectInputs() : %s VerifySignature failed", GetHash().ToString().c_str()));
genesis 843
genesis 844
genesis 845
genesis 846
genesis 847 if (!txindex.vSpent[prevout.n].IsNull())
mod6_excise_hash_... 848 return fMiner ? false : error("ConnectInputs() : %s prev tx already used at %s", GetHash().ToString().c_str(), txindex.vSpent[prevout.n].ToString().c_str());
genesis 849
genesis 850
genesis 851 nValueIn += txPrev.vout[prevout.n].nValue;
genesis 852 if (!MoneyRange(txPrev.vout[prevout.n].nValue) || !MoneyRange(nValueIn))
genesis 853 return DoS(100, error("ConnectInputs() : txin values out of range"));
genesis 854
genesis 855
genesis 856 txindex.vSpent[prevout.n] = posThisTx;
genesis 857
genesis 858
genesis 859 if (fBlock || fMiner)
genesis 860 {
genesis 861 mapTestPool[prevout.hash] = txindex;
genesis 862 }
genesis 863 }
genesis 864
genesis 865 if (nValueIn < GetValueOut())
mod6_excise_hash_... 866 return DoS(100, error("ConnectInputs() : %s value in < value out", GetHash().ToString().c_str()));
genesis 867
genesis 868
genesis 869 int64 nTxFee = nValueIn - GetValueOut();
genesis 870 if (nTxFee < 0)
mod6_excise_hash_... 871 return DoS(100, error("ConnectInputs() : %s nTxFee < 0", GetHash().ToString().c_str()));
genesis 872 if (nTxFee < nMinFee)
genesis 873 return false;
genesis 874 nFees += nTxFee;
genesis 875 if (!MoneyRange(nFees))
genesis 876 return DoS(100, error("ConnectInputs() : nFees out of range"));
genesis 877 }
genesis 878
genesis 879 if (fBlock)
genesis 880 {
genesis 881
genesis 882 mapTestPool[GetHash()] = CTxIndex(posThisTx, vout.size());
genesis 883 }
genesis 884 else if (fMiner)
genesis 885 {
genesis 886
genesis 887 mapTestPool[GetHash()] = CTxIndex(CDiskTxPos(1,1,1), vout.size());
genesis 888 }
genesis 889
genesis 890 return true;
genesis 891 }
genesis 892
genesis 893
genesis 894 bool CTransaction::ClientConnectInputs()
genesis 895 {
genesis 896 if (IsCoinBase())
genesis 897 return false;
genesis 898
genesis 899
genesis 900 CRITICAL_BLOCK(cs_mapTransactions)
genesis 901 {
genesis 902 int64 nValueIn = 0;
genesis 903 for (int i = 0; i < vin.size(); i++)
genesis 904 {
genesis 905
genesis 906 COutPoint prevout = vin[i].prevout;
genesis 907 if (!mapTransactions.count(prevout.hash))
genesis 908 return false;
genesis 909 CTransaction& txPrev = mapTransactions[prevout.hash];
genesis 910
genesis 911 if (prevout.n >= txPrev.vout.size())
genesis 912 return false;
genesis 913
genesis 914
genesis 915 if (!VerifySignature(txPrev, *this, i))
genesis 916 return error("ConnectInputs() : VerifySignature failed");
genesis 917
genesis 918
genesis 919
genesis 920
genesis 921
genesis 922
genesis 923
genesis 924
genesis 925
genesis 926
genesis 927 nValueIn += txPrev.vout[prevout.n].nValue;
genesis 928
genesis 929 if (!MoneyRange(txPrev.vout[prevout.n].nValue) || !MoneyRange(nValueIn))
genesis 930 return error("ClientConnectInputs() : txin values out of range");
genesis 931 }
genesis 932 if (GetValueOut() > nValueIn)
genesis 933 return false;
genesis 934 }
genesis 935
genesis 936 return true;
genesis 937 }
genesis 938
genesis 939
genesis 940
genesis 941
genesis 942 bool CBlock::DisconnectBlock(CTxDB& txdb, CBlockIndex* pindex)
genesis 943 {
genesis 944
genesis 945 for (int i = vtx.size()-1; i >= 0; i--)
genesis 946 if (!vtx[i].DisconnectInputs(txdb))
genesis 947 return false;
genesis 948
genesis 949
genesis 950
genesis 951 if (pindex->pprev)
genesis 952 {
genesis 953 CDiskBlockIndex blockindexPrev(pindex->pprev);
genesis 954 blockindexPrev.hashNext = 0;
genesis 955 if (!txdb.WriteBlockIndex(blockindexPrev))
genesis 956 return error("DisconnectBlock() : WriteBlockIndex failed");
genesis 957 }
genesis 958
genesis 959 return true;
genesis 960 }
genesis 961
genesis 962 bool CBlock::ConnectBlock(CTxDB& txdb, CBlockIndex* pindex)
genesis 963 {
genesis 964
genesis 965 if (!CheckBlock())
genesis 966 return false;
genesis 967
genesis 968
genesis 969
genesis 970
genesis 971
genesis 972
genesis 973
genesis 974
genesis 975
genesis 976
asciilifeform_let... 977 if (pindex->nTime > 1331769600)
genesis 978 BOOST_FOREACH(CTransaction& tx, vtx)
genesis 979 {
genesis 980 CTxIndex txindexOld;
genesis 981 if (txdb.ReadTxIndex(tx.GetHash(), txindexOld))
genesis 982 BOOST_FOREACH(CDiskTxPos &pos, txindexOld.vSpent)
genesis 983 if (pos.IsNull())
genesis 984 return false;
genesis 985 }
genesis 986
genesis 987
genesis 988 unsigned int nTxPos = pindex->nBlockPos + ::GetSerializeSize(CBlock(), SER_DISK) - 1 + GetSizeOfCompactSize(vtx.size());
genesis 989
genesis 990 map<uint256, CTxIndex> mapQueuedChanges;
genesis 991 int64 nFees = 0;
genesis 992 BOOST_FOREACH(CTransaction& tx, vtx)
genesis 993 {
genesis 994 CDiskTxPos posThisTx(pindex->nFile, pindex->nBlockPos, nTxPos);
genesis 995 nTxPos += ::GetSerializeSize(tx, SER_DISK);
genesis 996
genesis 997 bool fInvalid;
genesis 998 if (!tx.ConnectInputs(txdb, mapQueuedChanges, posThisTx, pindex, nFees, true, false, 0, fInvalid))
genesis 999 return false;
genesis 1000 }
genesis 1001
genesis 1002 for (map<uint256, CTxIndex>::iterator mi = mapQueuedChanges.begin(); mi != mapQueuedChanges.end(); ++mi)
genesis 1003 {
genesis 1004 if (!txdb.UpdateTxIndex((*mi).first, (*mi).second))
genesis 1005 return error("ConnectBlock() : UpdateTxIndex failed");
genesis 1006 }
genesis 1007
genesis 1008 if (vtx[0].GetValueOut() > GetBlockValue(pindex->nHeight, nFees))
genesis 1009 return false;
genesis 1010
genesis 1011
genesis 1012
genesis 1013 if (pindex->pprev)
genesis 1014 {
genesis 1015 CDiskBlockIndex blockindexPrev(pindex->pprev);
genesis 1016 blockindexPrev.hashNext = pindex->GetBlockHash();
genesis 1017 if (!txdb.WriteBlockIndex(blockindexPrev))
genesis 1018 return error("ConnectBlock() : WriteBlockIndex failed");
genesis 1019 }
genesis 1020
genesis 1021
genesis 1022 BOOST_FOREACH(CTransaction& tx, vtx)
genesis 1023 SyncWithWallets(tx, this, true);
genesis 1024
genesis 1025 return true;
genesis 1026 }
genesis 1027
genesis 1028 bool static Reorganize(CTxDB& txdb, CBlockIndex* pindexNew)
genesis 1029 {
genesis 1030 printf("REORGANIZE\n");
genesis 1031
genesis 1032
genesis 1033 CBlockIndex* pfork = pindexBest;
genesis 1034 CBlockIndex* plonger = pindexNew;
genesis 1035 while (pfork != plonger)
genesis 1036 {
genesis 1037 while (plonger->nHeight > pfork->nHeight)
genesis 1038 if (!(plonger = plonger->pprev))
genesis 1039 return error("Reorganize() : plonger->pprev is null");
genesis 1040 if (pfork == plonger)
genesis 1041 break;
genesis 1042 if (!(pfork = pfork->pprev))
genesis 1043 return error("Reorganize() : pfork->pprev is null");
genesis 1044 }
genesis 1045
genesis 1046
genesis 1047 vector<CBlockIndex*> vDisconnect;
genesis 1048 for (CBlockIndex* pindex = pindexBest; pindex != pfork; pindex = pindex->pprev)
genesis 1049 vDisconnect.push_back(pindex);
genesis 1050
genesis 1051
genesis 1052 vector<CBlockIndex*> vConnect;
genesis 1053 for (CBlockIndex* pindex = pindexNew; pindex != pfork; pindex = pindex->pprev)
genesis 1054 vConnect.push_back(pindex);
genesis 1055 reverse(vConnect.begin(), vConnect.end());
genesis 1056
genesis 1057
genesis 1058 vector<CTransaction> vResurrect;
genesis 1059 BOOST_FOREACH(CBlockIndex* pindex, vDisconnect)
genesis 1060 {
genesis 1061 CBlock block;
genesis 1062 if (!block.ReadFromDisk(pindex))
genesis 1063 return error("Reorganize() : ReadFromDisk for disconnect failed");
genesis 1064 if (!block.DisconnectBlock(txdb, pindex))
genesis 1065 return error("Reorganize() : DisconnectBlock failed");
genesis 1066
genesis 1067
genesis 1068 BOOST_FOREACH(const CTransaction& tx, block.vtx)
genesis 1069 if (!tx.IsCoinBase())
genesis 1070 vResurrect.push_back(tx);
genesis 1071 }
genesis 1072
genesis 1073
genesis 1074 vector<CTransaction> vDelete;
genesis 1075 for (int i = 0; i < vConnect.size(); i++)
genesis 1076 {
genesis 1077 CBlockIndex* pindex = vConnect[i];
genesis 1078 CBlock block;
genesis 1079 if (!block.ReadFromDisk(pindex))
genesis 1080 return error("Reorganize() : ReadFromDisk for connect failed");
genesis 1081 if (!block.ConnectBlock(txdb, pindex))
genesis 1082 {
genesis 1083
genesis 1084 txdb.TxnAbort();
genesis 1085 return error("Reorganize() : ConnectBlock failed");
genesis 1086 }
genesis 1087
genesis 1088
genesis 1089 BOOST_FOREACH(const CTransaction& tx, block.vtx)
genesis 1090 vDelete.push_back(tx);
genesis 1091 }
genesis 1092 if (!txdb.WriteHashBestChain(pindexNew->GetBlockHash()))
genesis 1093 return error("Reorganize() : WriteHashBestChain failed");
genesis 1094
genesis 1095
genesis 1096 if (!txdb.TxnCommit())
genesis 1097 return error("Reorganize() : TxnCommit failed");
genesis 1098
genesis 1099
genesis 1100 BOOST_FOREACH(CBlockIndex* pindex, vDisconnect)
genesis 1101 if (pindex->pprev)
genesis 1102 pindex->pprev->pnext = NULL;
genesis 1103
genesis 1104
genesis 1105 BOOST_FOREACH(CBlockIndex* pindex, vConnect)
genesis 1106 if (pindex->pprev)
genesis 1107 pindex->pprev->pnext = pindex;
genesis 1108
genesis 1109
genesis 1110 BOOST_FOREACH(CTransaction& tx, vResurrect)
genesis 1111 tx.AcceptToMemoryPool(txdb, false);
genesis 1112
genesis 1113
genesis 1114 BOOST_FOREACH(CTransaction& tx, vDelete)
genesis 1115 tx.RemoveFromMemoryPool();
genesis 1116
genesis 1117 return true;
genesis 1118 }
genesis 1119
genesis 1120
genesis 1121 bool CBlock::SetBestChain(CTxDB& txdb, CBlockIndex* pindexNew)
genesis 1122 {
genesis 1123 uint256 hash = GetHash();
genesis 1124
genesis 1125 txdb.TxnBegin();
genesis 1126 if (pindexGenesisBlock == NULL && hash == hashGenesisBlock)
genesis 1127 {
genesis 1128 txdb.WriteHashBestChain(hash);
genesis 1129 if (!txdb.TxnCommit())
genesis 1130 return error("SetBestChain() : TxnCommit failed");
genesis 1131 pindexGenesisBlock = pindexNew;
genesis 1132 }
genesis 1133 else if (hashPrevBlock == hashBestChain)
genesis 1134 {
genesis 1135
genesis 1136 if (!ConnectBlock(txdb, pindexNew) || !txdb.WriteHashBestChain(hash))
genesis 1137 {
genesis 1138 txdb.TxnAbort();
genesis 1139 InvalidChainFound(pindexNew);
genesis 1140 return error("SetBestChain() : ConnectBlock failed");
genesis 1141 }
genesis 1142 if (!txdb.TxnCommit())
genesis 1143 return error("SetBestChain() : TxnCommit failed");
genesis 1144
genesis 1145
genesis 1146 pindexNew->pprev->pnext = pindexNew;
genesis 1147
genesis 1148
genesis 1149 BOOST_FOREACH(CTransaction& tx, vtx)
genesis 1150 tx.RemoveFromMemoryPool();
genesis 1151 }
genesis 1152 else
genesis 1153 {
genesis 1154
genesis 1155 if (!Reorganize(txdb, pindexNew))
genesis 1156 {
genesis 1157 txdb.TxnAbort();
genesis 1158 InvalidChainFound(pindexNew);
genesis 1159 return error("SetBestChain() : Reorganize failed");
genesis 1160 }
genesis 1161 }
genesis 1162
genesis 1163
genesis 1164 if (!IsInitialBlockDownload())
genesis 1165 {
genesis 1166 const CBlockLocator locator(pindexNew);
genesis 1167 ::SetBestChain(locator);
genesis 1168 }
genesis 1169
genesis 1170
genesis 1171 hashBestChain = hash;
genesis 1172 pindexBest = pindexNew;
genesis 1173 nBestHeight = pindexBest->nHeight;
genesis 1174 bnBestChainWork = pindexNew->bnChainWork;
genesis 1175 nTimeBestReceived = GetTime();
genesis 1176 nTransactionsUpdated++;
mod6_excise_hash_... 1177 printf("SetBestChain: new best=%s height=%d work=%s\n", hashBestChain.ToString().c_str(), nBestHeight, bnBestChainWork.ToString().c_str());
genesis 1178
genesis 1179 return true;
genesis 1180 }
genesis 1181
genesis 1182
genesis 1183 bool CBlock::AddToBlockIndex(unsigned int nFile, unsigned int nBlockPos)
genesis 1184 {
genesis 1185
genesis 1186 uint256 hash = GetHash();
genesis 1187 if (mapBlockIndex.count(hash))
mod6_excise_hash_... 1188 return error("AddToBlockIndex() : %s already exists", hash.ToString().c_str());
genesis 1189
genesis 1190
genesis 1191 CBlockIndex* pindexNew = new CBlockIndex(nFile, nBlockPos, *this);
genesis 1192 if (!pindexNew)
genesis 1193 return error("AddToBlockIndex() : new CBlockIndex failed");
genesis 1194 map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.insert(make_pair(hash, pindexNew)).first;
genesis 1195 pindexNew->phashBlock = &((*mi).first);
genesis 1196 map<uint256, CBlockIndex*>::iterator miPrev = mapBlockIndex.find(hashPrevBlock);
genesis 1197 if (miPrev != mapBlockIndex.end())
genesis 1198 {
genesis 1199 pindexNew->pprev = (*miPrev).second;
genesis 1200 pindexNew->nHeight = pindexNew->pprev->nHeight + 1;
genesis 1201 }
genesis 1202 pindexNew->bnChainWork = (pindexNew->pprev ? pindexNew->pprev->bnChainWork : 0) + pindexNew->GetBlockWork();
genesis 1203
genesis 1204 CTxDB txdb;
genesis 1205 txdb.TxnBegin();
genesis 1206 txdb.WriteBlockIndex(CDiskBlockIndex(pindexNew));
genesis 1207 if (!txdb.TxnCommit())
genesis 1208 return false;
genesis 1209
genesis 1210
genesis 1211 if (pindexNew->bnChainWork > bnBestChainWork)
genesis 1212 if (!SetBestChain(txdb, pindexNew))
genesis 1213 return false;
genesis 1214
genesis 1215 txdb.Close();
genesis 1216
genesis 1217 if (pindexNew == pindexBest)
genesis 1218 {
genesis 1219
genesis 1220 static uint256 hashPrevBestCoinBase;
genesis 1221 UpdatedTransaction(hashPrevBestCoinBase);
genesis 1222 hashPrevBestCoinBase = vtx[0].GetHash();
genesis 1223 }
genesis 1224
genesis 1225 MainFrameRepaint();
genesis 1226 return true;
genesis 1227 }
genesis 1228
genesis 1229
genesis 1230
genesis 1231
genesis 1232 bool CBlock::CheckBlock() const
genesis 1233 {
genesis 1234
genesis 1235
genesis 1236
genesis 1237
genesis 1238 if (vtx.empty() || vtx.size() > MAX_BLOCK_SIZE || ::GetSerializeSize(*this, SER_NETWORK) > MAX_BLOCK_SIZE)
genesis 1239 return DoS(100, error("CheckBlock() : size limits failed"));
genesis 1240
genesis 1241
genesis 1242 if (!CheckProofOfWork(GetHash(), nBits))
genesis 1243 return DoS(50, error("CheckBlock() : proof of work failed"));
genesis 1244
genesis 1245
genesis 1246 if (GetBlockTime() > GetAdjustedTime() + 2 * 60 * 60)
genesis 1247 return error("CheckBlock() : block timestamp too far in the future");
genesis 1248
genesis 1249
genesis 1250 if (vtx.empty() || !vtx[0].IsCoinBase())
genesis 1251 return DoS(100, error("CheckBlock() : first tx is not coinbase"));
genesis 1252 for (int i = 1; i < vtx.size(); i++)
genesis 1253 if (vtx[i].IsCoinBase())
genesis 1254 return DoS(100, error("CheckBlock() : more than one coinbase"));
genesis 1255
genesis 1256
genesis 1257 BOOST_FOREACH(const CTransaction& tx, vtx)
genesis 1258 if (!tx.CheckTransaction())
genesis 1259 return DoS(tx.nDoS, error("CheckBlock() : CheckTransaction failed"));
genesis 1260
genesis 1261
genesis 1262 if (GetSigOpCount() > MAX_BLOCK_SIGOPS)
genesis 1263 return DoS(100, error("CheckBlock() : out-of-bounds SigOpCount"));
genesis 1264
genesis 1265
genesis 1266 if (hashMerkleRoot != BuildMerkleTree())
genesis 1267 return DoS(100, error("CheckBlock() : hashMerkleRoot mismatch"));
genesis 1268
genesis 1269 return true;
genesis 1270 }
genesis 1271
genesis 1272 bool CBlock::AcceptBlock()
genesis 1273 {
genesis 1274
genesis 1275 uint256 hash = GetHash();
genesis 1276 if (mapBlockIndex.count(hash))
genesis 1277 return error("AcceptBlock() : block already in mapBlockIndex");
genesis 1278
genesis 1279
genesis 1280 map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(hashPrevBlock);
genesis 1281 if (mi == mapBlockIndex.end())
genesis 1282 return DoS(10, error("AcceptBlock() : prev block not found"));
genesis 1283 CBlockIndex* pindexPrev = (*mi).second;
genesis 1284 int nHeight = pindexPrev->nHeight+1;
genesis 1285
genesis 1286
genesis 1287 if (nBits != GetNextWorkRequired(pindexPrev, this))
genesis 1288 return DoS(100, error("AcceptBlock() : incorrect proof of work"));
genesis 1289
genesis 1290
genesis 1291 if (GetBlockTime() <= pindexPrev->GetMedianTimePast())
genesis 1292 return error("AcceptBlock() : block's timestamp is too early");
genesis 1293
genesis 1294
genesis 1295 BOOST_FOREACH(const CTransaction& tx, vtx)
genesis 1296 if (!tx.IsFinal(nHeight, GetBlockTime()))
genesis 1297 return DoS(10, error("AcceptBlock() : contains a non-final transaction"));
genesis 1298
genesis 1299
genesis 1300 if (!Checkpoints::CheckBlock(nHeight, hash))
genesis 1301 return DoS(100, error("AcceptBlock() : rejected by checkpoint lockin at %d", nHeight));
genesis 1302
genesis 1303
genesis 1304 if (!CheckDiskSpace(::GetSerializeSize(*this, SER_DISK)))
genesis 1305 return error("AcceptBlock() : out of disk space");
genesis 1306 unsigned int nFile = -1;
genesis 1307 unsigned int nBlockPos = 0;
genesis 1308 if (!WriteToDisk(nFile, nBlockPos))
genesis 1309 return error("AcceptBlock() : WriteToDisk failed");
genesis 1310 if (!AddToBlockIndex(nFile, nBlockPos))
genesis 1311 return error("AcceptBlock() : AddToBlockIndex failed");
genesis 1312
genesis 1313
genesis 1314 if (hashBestChain == hash)
genesis 1315 CRITICAL_BLOCK(cs_vNodes)
genesis 1316 BOOST_FOREACH(CNode* pnode, vNodes)
genesis 1317 if (nBestHeight > (pnode->nStartingHeight != -1 ? pnode->nStartingHeight - 2000 : 140700))
genesis 1318 pnode->PushInventory(CInv(MSG_BLOCK, hash));
genesis 1319
genesis 1320 return true;
genesis 1321 }
genesis 1322
genesis 1323 bool ProcessBlock(CNode* pfrom, CBlock* pblock)
genesis 1324 {
mod6_whogaveblox 1325
mod6_whogaveblox 1326 string peer_ip;
mod6_whogaveblox 1327
mod6_whogaveblox 1328 if (pfrom != NULL) {
mod6_whogaveblox 1329 peer_ip = pfrom->addr.ToStringIP();
mod6_whogaveblox 1330 } else {
mod6_whogaveblox 1331 peer_ip = "LOCAL";
mod6_whogaveblox 1332 }
mod6_whogaveblox 1333
genesis 1334
genesis 1335 uint256 hash = pblock->GetHash();
genesis 1336 if (mapBlockIndex.count(hash))
mod6_whogaveblox 1337 return error("ProcessBlock() : already have block %d %s from peer %s",
mod6_whogaveblox 1338 mapBlockIndex[hash]->nHeight, hash.ToString().c_str(),
mod6_whogaveblox 1339 peer_ip.c_str());
genesis 1340
genesis 1341
genesis 1342 if (!pblock->CheckBlock())
mod6_whogaveblox 1343 return error("ProcessBlock() : CheckBlock FAILED from peer %s", peer_ip.c_str());
genesis 1344
genesis 1345 CBlockIndex* pcheckpoint = Checkpoints::GetLastCheckpoint(mapBlockIndex);
genesis 1346 if (pcheckpoint && pblock->hashPrevBlock != hashBestChain)
genesis 1347 {
genesis 1348
genesis 1349 int64 deltaTime = pblock->GetBlockTime() - pcheckpoint->nTime;
genesis 1350 if (deltaTime < 0)
genesis 1351 {
genesis 1352 if (pfrom)
genesis 1353 pfrom->Misbehaving(100);
mod6_whogaveblox 1354 return error("ProcessBlock() : block with timestamp before last checkpoint from peer %s",
mod6_whogaveblox 1355 peer_ip.c_str());
genesis 1356 }
genesis 1357 CBigNum bnNewBlock;
genesis 1358 bnNewBlock.SetCompact(pblock->nBits);
genesis 1359 CBigNum bnRequired;
genesis 1360 bnRequired.SetCompact(ComputeMinWork(pcheckpoint->nBits, deltaTime));
genesis 1361 if (bnNewBlock > bnRequired)
genesis 1362 {
genesis 1363 if (pfrom)
genesis 1364 pfrom->Misbehaving(100);
mod6_whogaveblox 1365 return error("ProcessBlock() : block with too little proof-of-work from peer %s",
mod6_whogaveblox 1366 peer_ip.c_str());
genesis 1367 }
genesis 1368 }
genesis 1369
asciilifeform_orp... 1370
genesis 1371 if (!mapBlockIndex.count(pblock->hashPrevBlock))
genesis 1372 {
mod6_whogaveblox 1373 printf("ProcessBlock: BASTARD BLOCK, prev=%s, DISCARDED from peer %s\n",
mod6_whogaveblox 1374 pblock->hashPrevBlock.ToString().c_str(),
mod6_whogaveblox 1375 peer_ip.c_str());
genesis 1376
genesis 1377
genesis 1378 if (pfrom)
asciilifeform_orp... 1379 pfrom->PushGetBlocks(pindexBest, pblock->hashPrevBlock);
asciilifeform_orp... 1380
asciilifeform_orp... 1381 return true;
genesis 1382 }
genesis 1383
genesis 1384
genesis 1385 if (!pblock->AcceptBlock())
mod6_whogaveblox 1386 return error("ProcessBlock() : AcceptBlock FAILED from peer %s", peer_ip.c_str());
mod6_whogaveblox 1387
mod6_whogaveblox 1388 printf("ProcessBlock: ACCEPTED block %s from: %s\n",
mod6_whogaveblox 1389 hash.ToString().c_str(), peer_ip.c_str());
mod6_whogaveblox 1390
genesis 1391 return true;
genesis 1392 }
genesis 1393
genesis 1394
genesis 1395
genesis 1396
genesis 1397
genesis 1398
genesis 1399
genesis 1400
genesis 1401 bool CheckDiskSpace(uint64 nAdditionalBytes)
genesis 1402 {
genesis 1403 uint64 nFreeBytesAvailable = filesystem::space(GetDataDir()).available;
genesis 1404
genesis 1405
genesis 1406 if (nFreeBytesAvailable < (uint64)15000000 + nAdditionalBytes)
genesis 1407 {
genesis 1408 fShutdown = true;
genesis 1409 string strMessage = _("Warning: Disk space is low ");
genesis 1410 strMiscWarning = strMessage;
genesis 1411 printf("*** %s\n", strMessage.c_str());
genesis 1412 ThreadSafeMessageBox(strMessage, "Bitcoin", wxOK | wxICON_EXCLAMATION);
genesis 1413 CreateThread(Shutdown, NULL);
genesis 1414 return false;
genesis 1415 }
genesis 1416 return true;
genesis 1417 }
genesis 1418
genesis 1419 FILE* OpenBlockFile(unsigned int nFile, unsigned int nBlockPos, const char* pszMode)
genesis 1420 {
genesis 1421 if (nFile == -1)
genesis 1422 return NULL;
genesis 1423 FILE* file = fopen(strprintf("%s/blk%04d.dat", GetDataDir().c_str(), nFile).c_str(), pszMode);
genesis 1424 if (!file)
genesis 1425 return NULL;
genesis 1426 if (nBlockPos != 0 && !strchr(pszMode, 'a') && !strchr(pszMode, 'w'))
genesis 1427 {
genesis 1428 if (fseek(file, nBlockPos, SEEK_SET) != 0)
genesis 1429 {
genesis 1430 fclose(file);
genesis 1431 return NULL;
genesis 1432 }
genesis 1433 }
genesis 1434 return file;
genesis 1435 }
genesis 1436
genesis 1437 static unsigned int nCurrentBlockFile = 1;
genesis 1438
genesis 1439 FILE* AppendBlockFile(unsigned int& nFileRet)
genesis 1440 {
genesis 1441 nFileRet = 0;
genesis 1442 loop
genesis 1443 {
genesis 1444 FILE* file = OpenBlockFile(nCurrentBlockFile, 0, "ab");
genesis 1445 if (!file)
genesis 1446 return NULL;
genesis 1447 if (fseek(file, 0, SEEK_END) != 0)
genesis 1448 return NULL;
genesis 1449
genesis 1450 if (ftell(file) < 0x7F000000 - MAX_SIZE)
genesis 1451 {
genesis 1452 nFileRet = nCurrentBlockFile;
genesis 1453 return file;
genesis 1454 }
genesis 1455 fclose(file);
genesis 1456 nCurrentBlockFile++;
genesis 1457 }
genesis 1458 }
genesis 1459
genesis 1460 bool LoadBlockIndex(bool fAllowNew)
genesis 1461 {
genesis 1462
genesis 1463
genesis 1464
genesis 1465 CTxDB txdb("cr");
genesis 1466 if (!txdb.LoadBlockIndex())
genesis 1467 return false;
genesis 1468 txdb.Close();
genesis 1469
genesis 1470
genesis 1471
genesis 1472
genesis 1473 if (mapBlockIndex.empty())
genesis 1474 {
genesis 1475 if (!fAllowNew)
genesis 1476 return false;
genesis 1477
genesis 1478
genesis 1479
genesis 1480
genesis 1481
genesis 1482
genesis 1483
genesis 1484
genesis 1485
genesis 1486 const char* pszTimestamp = "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks";
genesis 1487 CTransaction txNew;
genesis 1488 txNew.vin.resize(1);
genesis 1489 txNew.vout.resize(1);
genesis 1490 txNew.vin[0].scriptSig = CScript() << 486604799 << CBigNum(4) << vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp));
genesis 1491 txNew.vout[0].nValue = 50 * COIN;
genesis 1492 txNew.vout[0].scriptPubKey = CScript() << ParseHex("04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f") << OP_CHECKSIG;
genesis 1493 CBlock block;
genesis 1494 block.vtx.push_back(txNew);
genesis 1495 block.hashPrevBlock = 0;
genesis 1496 block.hashMerkleRoot = block.BuildMerkleTree();
genesis 1497 block.nVersion = 1;
genesis 1498 block.nTime = 1231006505;
genesis 1499 block.nBits = 0x1d00ffff;
genesis 1500 block.nNonce = 2083236893;
genesis 1501
genesis 1502
genesis 1503 printf("%s\n", block.GetHash().ToString().c_str());
genesis 1504 printf("%s\n", hashGenesisBlock.ToString().c_str());
genesis 1505 printf("%s\n", block.hashMerkleRoot.ToString().c_str());
genesis 1506 assert(block.hashMerkleRoot == uint256("0x4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"));
genesis 1507 block.print();
genesis 1508 assert(block.GetHash() == hashGenesisBlock);
genesis 1509
genesis 1510
genesis 1511 unsigned int nFile;
genesis 1512 unsigned int nBlockPos;
genesis 1513 if (!block.WriteToDisk(nFile, nBlockPos))
genesis 1514 return error("LoadBlockIndex() : writing genesis block to disk failed");
genesis 1515 if (!block.AddToBlockIndex(nFile, nBlockPos))
genesis 1516 return error("LoadBlockIndex() : genesis block not accepted");
genesis 1517 }
genesis 1518
genesis 1519 return true;
genesis 1520 }
genesis 1521
genesis 1522
genesis 1523
genesis 1524 void PrintBlockTree()
genesis 1525 {
genesis 1526
genesis 1527 map<CBlockIndex*, vector<CBlockIndex*> > mapNext;
genesis 1528 for (map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.begin(); mi != mapBlockIndex.end(); ++mi)
genesis 1529 {
genesis 1530 CBlockIndex* pindex = (*mi).second;
genesis 1531 mapNext[pindex->pprev].push_back(pindex);
genesis 1532
genesis 1533
genesis 1534
genesis 1535 }
genesis 1536
genesis 1537 vector<pair<int, CBlockIndex*> > vStack;
genesis 1538 vStack.push_back(make_pair(0, pindexGenesisBlock));
genesis 1539
genesis 1540 int nPrevCol = 0;
genesis 1541 while (!vStack.empty())
genesis 1542 {
genesis 1543 int nCol = vStack.back().first;
genesis 1544 CBlockIndex* pindex = vStack.back().second;
genesis 1545 vStack.pop_back();
genesis 1546
genesis 1547
genesis 1548 if (nCol > nPrevCol)
genesis 1549 {
genesis 1550 for (int i = 0; i < nCol-1; i++)
genesis 1551 printf("| ");
genesis 1552 printf("|\\\n");
genesis 1553 }
genesis 1554 else if (nCol < nPrevCol)
genesis 1555 {
genesis 1556 for (int i = 0; i < nCol; i++)
genesis 1557 printf("| ");
genesis 1558 printf("|\n");
genesis 1559 }
genesis 1560 nPrevCol = nCol;
genesis 1561
genesis 1562
genesis 1563 for (int i = 0; i < nCol; i++)
genesis 1564 printf("| ");
genesis 1565
genesis 1566
genesis 1567 CBlock block;
genesis 1568 block.ReadFromDisk(pindex);
genesis 1569 printf("%d (%u,%u) %s %s tx %d",
genesis 1570 pindex->nHeight,
genesis 1571 pindex->nFile,
genesis 1572 pindex->nBlockPos,
mod6_excise_hash_... 1573 block.GetHash().ToString().c_str(),
genesis 1574 DateTimeStrFormat("%x %H:%M:%S", block.GetBlockTime()).c_str(),
genesis 1575 block.vtx.size());
genesis 1576
genesis 1577 PrintWallets(block);
genesis 1578
genesis 1579
genesis 1580 vector<CBlockIndex*>& vNext = mapNext[pindex];
genesis 1581 for (int i = 0; i < vNext.size(); i++)
genesis 1582 {
genesis 1583 if (vNext[i]->pnext)
genesis 1584 {
genesis 1585 swap(vNext[0], vNext[i]);
genesis 1586 break;
genesis 1587 }
genesis 1588 }
genesis 1589
genesis 1590
genesis 1591 for (int i = 0; i < vNext.size(); i++)
genesis 1592 vStack.push_back(make_pair(nCol+i, vNext[i]));
genesis 1593 }
genesis 1594 }
genesis 1595
genesis 1596
genesis 1597
genesis 1598
genesis 1599
bitcoin-asciilife... 1600
genesis 1601
genesis 1602
genesis 1603 string GetWarnings(string strFor)
genesis 1604 {
genesis 1605 int nPriority = 0;
genesis 1606 string strStatusBar;
genesis 1607 string strRPC;
genesis 1608 if (GetBoolArg("-testsafemode"))
genesis 1609 strRPC = "test";
genesis 1610
genesis 1611
genesis 1612 if (strMiscWarning != "")
genesis 1613 {
genesis 1614 nPriority = 1000;
genesis 1615 strStatusBar = strMiscWarning;
genesis 1616 }
genesis 1617
genesis 1618
genesis 1619 if (pindexBest && bnBestInvalidWork > bnBestChainWork + pindexBest->GetBlockWork() * 6)
genesis 1620 {
genesis 1621 nPriority = 2000;
genesis 1622 strStatusBar = strRPC = "WARNING: Displayed transactions may not be correct! You may need to upgrade, or other nodes may need to upgrade.";
genesis 1623 }
genesis 1624
genesis 1625 if (strFor == "statusbar")
genesis 1626 return strStatusBar;
genesis 1627 else if (strFor == "rpc")
genesis 1628 return strRPC;
genesis 1629 assert(!"GetWarnings() : invalid parameter");
genesis 1630 return "error";
genesis 1631 }
genesis 1632
genesis 1633
genesis 1634
genesis 1635
genesis 1636
genesis 1637
genesis 1638
genesis 1639
genesis 1640 bool static AlreadyHave(CTxDB& txdb, const CInv& inv)
genesis 1641 {
genesis 1642 switch (inv.type)
genesis 1643 {
asciilifeform_tx-... 1644 case MSG_TX: return mapTransactions.count(inv.hash) || txdb.ContainsTx(inv.hash);
asciilifeform_orp... 1645 case MSG_BLOCK: return mapBlockIndex.count(inv.hash);
genesis 1646 }
genesis 1647
genesis 1648 return true;
genesis 1649 }
genesis 1650
genesis 1651
genesis 1652
genesis 1653
genesis 1654
genesis 1655
genesis 1656
genesis 1657 unsigned char pchMessageStart[4] = { 0xf9, 0xbe, 0xb4, 0xd9 };
genesis 1658
genesis 1659
genesis 1660 bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv)
genesis 1661 {
genesis 1662 static map<unsigned int, vector<unsigned char> > mapReuseKey;
genesis 1663 RandAddSeedPerfmon();
genesis 1664 if (fDebug) {
genesis 1665 printf("%s ", DateTimeStrFormat("%x %H:%M:%S", GetTime()).c_str());
genesis 1666 printf("received: %s (%d bytes)\n", strCommand.c_str(), vRecv.size());
genesis 1667 }
genesis 1668 if (mapArgs.count("-dropmessagestest") && GetRand(atoi(mapArgs["-dropmessagestest"])) == 0)
genesis 1669 {
genesis 1670 printf("dropmessagestest DROPPING RECV MESSAGE\n");
genesis 1671 return true;
genesis 1672 }
genesis 1673
genesis 1674
genesis 1675
genesis 1676
genesis 1677
genesis 1678 if (strCommand == "version")
genesis 1679 {
genesis 1680
genesis 1681 if (pfrom->nVersion != 0)
genesis 1682 {
genesis 1683 pfrom->Misbehaving(1);
genesis 1684 return false;
genesis 1685 }
genesis 1686
genesis 1687 int64 nTime;
genesis 1688 CAddress addrMe;
genesis 1689 CAddress addrFrom;
genesis 1690 uint64 nNonce = 1;
genesis 1691 vRecv >> pfrom->nVersion >> pfrom->nServices >> nTime >> addrMe;
genesis 1692 if (pfrom->nVersion == 10300)
genesis 1693 pfrom->nVersion = 300;
genesis 1694 if (pfrom->nVersion >= 106 && !vRecv.empty())
genesis 1695 vRecv >> addrFrom >> nNonce;
genesis 1696 if (pfrom->nVersion >= 106 && !vRecv.empty())
genesis 1697 vRecv >> pfrom->strSubVer;
genesis 1698 if (pfrom->nVersion >= 209 && !vRecv.empty())
genesis 1699 vRecv >> pfrom->nStartingHeight;
genesis 1700
genesis 1701 if (pfrom->nVersion == 0)
genesis 1702 return false;
genesis 1703
genesis 1704
genesis 1705 if (nNonce == nLocalHostNonce && nNonce > 1)
genesis 1706 {
genesis 1707 printf("connected to self at %s, disconnecting\n", pfrom->addr.ToString().c_str());
genesis 1708 pfrom->fDisconnect = true;
genesis 1709 return true;
genesis 1710 }
genesis 1711
genesis 1712
genesis 1713 if (pfrom->fInbound)
genesis 1714 pfrom->PushVersion();
genesis 1715
genesis 1716 pfrom->fClient = !(pfrom->nServices & NODE_NETWORK);
genesis 1717
genesis 1718 AddTimeData(pfrom->addr.ip, nTime);
genesis 1719
genesis 1720
genesis 1721 if (pfrom->nVersion >= 209)
genesis 1722 pfrom->PushMessage("verack");
genesis 1723 pfrom->vSend.SetVersion(min(pfrom->nVersion, VERSION));
genesis 1724 if (pfrom->nVersion < 209)
genesis 1725 pfrom->vRecv.SetVersion(min(pfrom->nVersion, VERSION));
genesis 1726
genesis 1727 if (!pfrom->fInbound)
genesis 1728 {
genesis 1729
genesis 1730 if (addrLocalHost.IsRoutable() && !fUseProxy)
genesis 1731 {
genesis 1732 CAddress addr(addrLocalHost);
genesis 1733 addr.nTime = GetAdjustedTime();
genesis 1734 pfrom->PushAddress(addr);
genesis 1735 }
genesis 1736
genesis 1737
genesis 1738 if (pfrom->nVersion >= 31402 || mapAddresses.size() < 1000)
genesis 1739 {
genesis 1740 pfrom->PushMessage("getaddr");
genesis 1741 pfrom->fGetAddr = true;
genesis 1742 }
genesis 1743 }
genesis 1744
asciilifeform_agg... 1745
asciilifeform_agg... 1746 if (!pfrom->fClient)
genesis 1747 {
genesis 1748 pfrom->PushGetBlocks(pindexBest, uint256(0));
genesis 1749 }
genesis 1750
genesis 1751 pfrom->fSuccessfullyConnected = true;
genesis 1752
genesis 1753 printf("version message: version %d, blocks=%d\n", pfrom->nVersion, pfrom->nStartingHeight);
genesis 1754
genesis 1755 cPeerBlockCounts.input(pfrom->nStartingHeight);
genesis 1756 }
genesis 1757
genesis 1758
genesis 1759 else if (pfrom->nVersion == 0)
genesis 1760 {
genesis 1761
genesis 1762 pfrom->Misbehaving(1);
genesis 1763 return false;
genesis 1764 }
genesis 1765
genesis 1766
genesis 1767 else if (strCommand == "verack")
genesis 1768 {
genesis 1769 pfrom->vRecv.SetVersion(min(pfrom->nVersion, VERSION));
genesis 1770 }
genesis 1771
genesis 1772
genesis 1773 else if (strCommand == "addr")
genesis 1774 {
genesis 1775 vector<CAddress> vAddr;
genesis 1776 vRecv >> vAddr;
genesis 1777
genesis 1778
genesis 1779 if (pfrom->nVersion < 209)
genesis 1780 return true;
genesis 1781 if (pfrom->nVersion < 31402 && mapAddresses.size() > 1000)
genesis 1782 return true;
genesis 1783 if (vAddr.size() > 1000)
genesis 1784 {
genesis 1785 pfrom->Misbehaving(20);
genesis 1786 return error("message addr size() = %d", vAddr.size());
genesis 1787 }
genesis 1788
genesis 1789
genesis 1790 CAddrDB addrDB;
genesis 1791 addrDB.TxnBegin();
genesis 1792 int64 nNow = GetAdjustedTime();
genesis 1793 int64 nSince = nNow - 10 * 60;
genesis 1794 BOOST_FOREACH(CAddress& addr, vAddr)
genesis 1795 {
genesis 1796 if (fShutdown)
genesis 1797 return true;
genesis 1798
genesis 1799 if (!addr.IsIPv4())
genesis 1800 continue;
genesis 1801 if (addr.nTime <= 100000000 || addr.nTime > nNow + 10 * 60)
genesis 1802 addr.nTime = nNow - 5 * 24 * 60 * 60;
genesis 1803 AddAddress(addr, 2 * 60 * 60, &addrDB);
genesis 1804 pfrom->AddAddressKnown(addr);
genesis 1805 if (addr.nTime > nSince && !pfrom->fGetAddr && vAddr.size() <= 10 && addr.IsRoutable())
genesis 1806 {
genesis 1807
genesis 1808 CRITICAL_BLOCK(cs_vNodes)
genesis 1809 {
genesis 1810
genesis 1811
genesis 1812 static uint256 hashSalt;
genesis 1813 if (hashSalt == 0)
genesis 1814 RAND_bytes((unsigned char*)&hashSalt, sizeof(hashSalt));
genesis 1815 uint256 hashRand = hashSalt ^ (((int64)addr.ip)<<32) ^ ((GetTime()+addr.ip)/(24*60*60));
genesis 1816 hashRand = Hash(BEGIN(hashRand), END(hashRand));
genesis 1817 multimap<uint256, CNode*> mapMix;
genesis 1818 BOOST_FOREACH(CNode* pnode, vNodes)
genesis 1819 {
genesis 1820 if (pnode->nVersion < 31402)
genesis 1821 continue;
genesis 1822 unsigned int nPointer;
genesis 1823 memcpy(&nPointer, &pnode, sizeof(nPointer));
genesis 1824 uint256 hashKey = hashRand ^ nPointer;
genesis 1825 hashKey = Hash(BEGIN(hashKey), END(hashKey));
genesis 1826 mapMix.insert(make_pair(hashKey, pnode));
genesis 1827 }
genesis 1828 int nRelayNodes = 2;
genesis 1829 for (multimap<uint256, CNode*>::iterator mi = mapMix.begin(); mi != mapMix.end() && nRelayNodes-- > 0; ++mi)
genesis 1830 ((*mi).second)->PushAddress(addr);
genesis 1831 }
genesis 1832 }
genesis 1833 }
genesis 1834 addrDB.TxnCommit();
genesis 1835 if (vAddr.size() < 1000)
genesis 1836 pfrom->fGetAddr = false;
genesis 1837 }
genesis 1838
genesis 1839
genesis 1840 else if (strCommand == "inv")
genesis 1841 {
genesis 1842 vector<CInv> vInv;
genesis 1843 vRecv >> vInv;
genesis 1844 if (vInv.size() > 50000)
genesis 1845 {
genesis 1846 pfrom->Misbehaving(20);
genesis 1847 return error("message inv size() = %d", vInv.size());
genesis 1848 }
genesis 1849
genesis 1850 CTxDB txdb("r");
genesis 1851 BOOST_FOREACH(const CInv& inv, vInv)
genesis 1852 {
genesis 1853 if (fShutdown)
genesis 1854 return true;
genesis 1855 pfrom->AddInventoryKnown(inv);
genesis 1856
genesis 1857 bool fAlreadyHave = AlreadyHave(txdb, inv);
genesis 1858 if (fDebug)
genesis 1859 printf(" got inventory: %s %s\n", inv.ToString().c_str(), fAlreadyHave ? "have" : "new");
genesis 1860
genesis 1861 if (!fAlreadyHave)
genesis 1862 pfrom->AskFor(inv);
genesis 1863
genesis 1864
genesis 1865 Inventory(inv.hash);
genesis 1866 }
genesis 1867 }
genesis 1868
genesis 1869
genesis 1870 else if (strCommand == "getdata")
genesis 1871 {
genesis 1872 vector<CInv> vInv;
genesis 1873 vRecv >> vInv;
genesis 1874 if (vInv.size() > 50000)
genesis 1875 {
genesis 1876 pfrom->Misbehaving(20);
genesis 1877 return error("message getdata size() = %d", vInv.size());
genesis 1878 }
genesis 1879
genesis 1880 BOOST_FOREACH(const CInv& inv, vInv)
genesis 1881 {
genesis 1882 if (fShutdown)
genesis 1883 return true;
genesis 1884 printf("received getdata for: %s\n", inv.ToString().c_str());
genesis 1885
genesis 1886 if (inv.type == MSG_BLOCK)
genesis 1887 {
genesis 1888
genesis 1889 map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(inv.hash);
genesis 1890 if (mi != mapBlockIndex.end())
genesis 1891 {
genesis 1892 CBlock block;
genesis 1893 block.ReadFromDisk((*mi).second);
genesis 1894 pfrom->PushMessage("block", block);
genesis 1895
genesis 1896
genesis 1897 if (inv.hash == pfrom->hashContinue)
genesis 1898 {
genesis 1899
genesis 1900
genesis 1901
genesis 1902 vector<CInv> vInv;
genesis 1903 vInv.push_back(CInv(MSG_BLOCK, hashBestChain));
genesis 1904 pfrom->PushMessage("inv", vInv);
genesis 1905 pfrom->hashContinue = 0;
genesis 1906 }
genesis 1907 }
genesis 1908 }
genesis 1909 else if (inv.IsKnownType())
genesis 1910 {
genesis 1911
genesis 1912 CRITICAL_BLOCK(cs_mapRelay)
genesis 1913 {
genesis 1914 map<CInv, CDataStream>::iterator mi = mapRelay.find(inv);
genesis 1915 if (mi != mapRelay.end())
genesis 1916 pfrom->PushMessage(inv.GetCommand(), (*mi).second);
genesis 1917 }
genesis 1918 }
malleus_mikehearn... 1919 else
malleus_mikehearn... 1920 {
malleus_mikehearn... 1921 pfrom->Misbehaving(100);
malleus_mikehearn... 1922 return error("BANNED peer issuing unknown inv type.");
malleus_mikehearn... 1923 }
genesis 1924
genesis 1925
genesis 1926 Inventory(inv.hash);
genesis 1927 }
genesis 1928 }
genesis 1929
genesis 1930
genesis 1931 else if (strCommand == "getblocks")
genesis 1932 {
genesis 1933 CBlockLocator locator;
genesis 1934 uint256 hashStop;
genesis 1935 vRecv >> locator >> hashStop;
genesis 1936
genesis 1937
genesis 1938 CBlockIndex* pindex = locator.GetBlockIndex();
genesis 1939
genesis 1940
genesis 1941 if (pindex)
genesis 1942 pindex = pindex->pnext;
genesis 1943 int nLimit = 500 + locator.GetDistanceBack();
genesis 1944 unsigned int nBytes = 0;
mod6_excise_hash_... 1945 printf("getblocks %d to %s limit %d\n", (pindex ? pindex->nHeight : -1), hashStop.ToString().c_str(), nLimit);
genesis 1946 for (; pindex; pindex = pindex->pnext)
genesis 1947 {
genesis 1948 if (pindex->GetBlockHash() == hashStop)
genesis 1949 {
mod6_excise_hash_... 1950 printf(" getblocks stopping at %d %s (%u bytes)\n", pindex->nHeight, pindex->GetBlockHash().ToString().c_str(), nBytes);
genesis 1951 break;
genesis 1952 }
genesis 1953 pfrom->PushInventory(CInv(MSG_BLOCK, pindex->GetBlockHash()));
genesis 1954 CBlock block;
genesis 1955 block.ReadFromDisk(pindex, true);
genesis 1956 nBytes += block.GetSerializeSize(SER_NETWORK);
genesis 1957 if (--nLimit <= 0 || nBytes >= SendBufferSize()/2)
genesis 1958 {
genesis 1959
genesis 1960
mod6_excise_hash_... 1961 printf(" getblocks stopping at limit %d %s (%u bytes)\n", pindex->nHeight, pindex->GetBlockHash().ToString().c_str(), nBytes);
genesis 1962 pfrom->hashContinue = pindex->GetBlockHash();
genesis 1963 break;
genesis 1964 }
genesis 1965 }
genesis 1966 }
genesis 1967
genesis 1968
genesis 1969 else if (strCommand == "getheaders")
genesis 1970 {
genesis 1971 CBlockLocator locator;
genesis 1972 uint256 hashStop;
genesis 1973 vRecv >> locator >> hashStop;
genesis 1974
genesis 1975 CBlockIndex* pindex = NULL;
genesis 1976 if (locator.IsNull())
genesis 1977 {
genesis 1978
genesis 1979 map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(hashStop);
genesis 1980 if (mi == mapBlockIndex.end())
genesis 1981 return true;
genesis 1982 pindex = (*mi).second;
genesis 1983 }
genesis 1984 else
genesis 1985 {
genesis 1986
genesis 1987 pindex = locator.GetBlockIndex();
genesis 1988 if (pindex)
genesis 1989 pindex = pindex->pnext;
genesis 1990 }
genesis 1991
genesis 1992 vector<CBlock> vHeaders;
genesis 1993 int nLimit = 2000 + locator.GetDistanceBack();
mod6_excise_hash_... 1994 printf("getheaders %d to %s limit %d\n", (pindex ? pindex->nHeight : -1), hashStop.ToString().c_str(), nLimit);
genesis 1995 for (; pindex; pindex = pindex->pnext)
genesis 1996 {
genesis 1997 vHeaders.push_back(pindex->GetBlockHeader());
genesis 1998 if (--nLimit <= 0 || pindex->GetBlockHash() == hashStop)
genesis 1999 break;
genesis 2000 }
genesis 2001 pfrom->PushMessage("headers", vHeaders);
genesis 2002 }
genesis 2003
genesis 2004
genesis 2005 else if (strCommand == "tx")
genesis 2006 {
genesis 2007 vector<uint256> vWorkQueue;
genesis 2008 CDataStream vMsg(vRecv);
genesis 2009 CTransaction tx;
genesis 2010 vRecv >> tx;
genesis 2011
genesis 2012 CInv inv(MSG_TX, tx.GetHash());
genesis 2013 pfrom->AddInventoryKnown(inv);
genesis 2014
genesis 2015 bool fMissingInputs = false;
genesis 2016 if (tx.AcceptToMemoryPool(true, &fMissingInputs))
genesis 2017 {
genesis 2018 SyncWithWallets(tx, NULL, true);
genesis 2019 RelayMessage(inv, vMsg);
genesis 2020 mapAlreadyAskedFor.erase(inv);
genesis 2021 vWorkQueue.push_back(inv.hash);
genesis 2022 }
genesis 2023 else if (fMissingInputs)
genesis 2024 {
mod6_excise_hash_... 2025 printf("REJECTED orphan tx %s\n", inv.hash.ToString().c_str());
genesis 2026 }
genesis 2027 if (tx.nDoS) pfrom->Misbehaving(tx.nDoS);
genesis 2028 }
genesis 2029
genesis 2030
genesis 2031 else if (strCommand == "block")
genesis 2032 {
genesis 2033 CBlock block;
genesis 2034 vRecv >> block;
genesis 2035
mod6_excise_hash_... 2036 printf("received block %s\n", block.GetHash().ToString().c_str());
genesis 2037
genesis 2038
genesis 2039 CInv inv(MSG_BLOCK, block.GetHash());
genesis 2040 pfrom->AddInventoryKnown(inv);
genesis 2041
genesis 2042 if (ProcessBlock(pfrom, &block))
genesis 2043 mapAlreadyAskedFor.erase(inv);
genesis 2044 if (block.nDoS) pfrom->Misbehaving(block.nDoS);
genesis 2045 }
genesis 2046
genesis 2047
genesis 2048 else if (strCommand == "getaddr")
genesis 2049 {
genesis 2050
genesis 2051 pfrom->vAddrToSend.clear();
genesis 2052 int64 nSince = GetAdjustedTime() - 3 * 60 * 60;
genesis 2053 CRITICAL_BLOCK(cs_mapAddresses)
genesis 2054 {
genesis 2055 unsigned int nCount = 0;
genesis 2056 BOOST_FOREACH(const PAIRTYPE(vector<unsigned char>, CAddress)& item, mapAddresses)
genesis 2057 {
genesis 2058 const CAddress& addr = item.second;
genesis 2059 if (addr.nTime > nSince)
genesis 2060 nCount++;
genesis 2061 }
genesis 2062 BOOST_FOREACH(const PAIRTYPE(vector<unsigned char>, CAddress)& item, mapAddresses)
genesis 2063 {
genesis 2064 const CAddress& addr = item.second;
genesis 2065 if (addr.nTime > nSince && GetRand(nCount) < 2500)
genesis 2066 pfrom->PushAddress(addr);
genesis 2067 }
genesis 2068 }
genesis 2069 }
genesis 2070
genesis 2071
genesis 2072 else if (strCommand == "checkorder")
genesis 2073 {
genesis 2074 uint256 hashReply;
genesis 2075 vRecv >> hashReply;
genesis 2076
genesis 2077 if (!GetBoolArg("-allowreceivebyip"))
genesis 2078 {
genesis 2079 pfrom->PushMessage("reply", hashReply, (int)2, string(""));
genesis 2080 return true;
genesis 2081 }
genesis 2082
genesis 2083 CWalletTx order;
genesis 2084 vRecv >> order;
genesis 2085
genesis 2086
genesis 2087
genesis 2088
genesis 2089 if (!mapReuseKey.count(pfrom->addr.ip))
genesis 2090 pwalletMain->GetKeyFromPool(mapReuseKey[pfrom->addr.ip], true);
genesis 2091
genesis 2092
genesis 2093 CScript scriptPubKey;
genesis 2094 scriptPubKey << mapReuseKey[pfrom->addr.ip] << OP_CHECKSIG;
genesis 2095 pfrom->PushMessage("reply", hashReply, (int)0, scriptPubKey);
genesis 2096 }
genesis 2097
genesis 2098
genesis 2099 else if (strCommand == "reply")
genesis 2100 {
genesis 2101 uint256 hashReply;
genesis 2102 vRecv >> hashReply;
genesis 2103
genesis 2104 CRequestTracker tracker;
genesis 2105 CRITICAL_BLOCK(pfrom->cs_mapRequests)
genesis 2106 {
genesis 2107 map<uint256, CRequestTracker>::iterator mi = pfrom->mapRequests.find(hashReply);
genesis 2108 if (mi != pfrom->mapRequests.end())
genesis 2109 {
genesis 2110 tracker = (*mi).second;
genesis 2111 pfrom->mapRequests.erase(mi);
genesis 2112 }
genesis 2113 }
genesis 2114 if (!tracker.IsNull())
genesis 2115 tracker.fn(tracker.param1, vRecv);
genesis 2116 }
genesis 2117
genesis 2118
genesis 2119 else if (strCommand == "ping")
genesis 2120 {
genesis 2121 }
genesis 2122
genesis 2123
genesis 2124 else
genesis 2125 {
malleus_mikehearn... 2126
malleus_mikehearn... 2127 pfrom->Misbehaving(100);
malleus_mikehearn... 2128 return error("BANNED peer issuing heathen command.");
genesis 2129 }
genesis 2130
genesis 2131
genesis 2132
genesis 2133 if (pfrom->fNetworkNode)
genesis 2134 if (strCommand == "version" || strCommand == "addr" || strCommand == "inv" || strCommand == "getdata" || strCommand == "ping")
genesis 2135 AddressCurrentlyConnected(pfrom->addr);
genesis 2136
genesis 2137
genesis 2138 return true;
genesis 2139 }
genesis 2140
genesis 2141 bool ProcessMessages(CNode* pfrom)
genesis 2142 {
genesis 2143 CDataStream& vRecv = pfrom->vRecv;
genesis 2144 if (vRecv.empty())
genesis 2145 return true;
genesis 2146
genesis 2147
genesis 2148
genesis 2149
genesis 2150
genesis 2151
genesis 2152
genesis 2153
genesis 2154
genesis 2155
genesis 2156
genesis 2157
genesis 2158 loop
genesis 2159 {
genesis 2160
genesis 2161 CDataStream::iterator pstart = search(vRecv.begin(), vRecv.end(), BEGIN(pchMessageStart), END(pchMessageStart));
genesis 2162 int nHeaderSize = vRecv.GetSerializeSize(CMessageHeader());
genesis 2163 if (vRecv.end() - pstart < nHeaderSize)
genesis 2164 {
genesis 2165 if (vRecv.size() > nHeaderSize)
genesis 2166 {
genesis 2167 printf("\n\nPROCESSMESSAGE MESSAGESTART NOT FOUND\n\n");
genesis 2168 vRecv.erase(vRecv.begin(), vRecv.end() - nHeaderSize);
genesis 2169 }
genesis 2170 break;
genesis 2171 }
genesis 2172 if (pstart - vRecv.begin() > 0)
genesis 2173 printf("\n\nPROCESSMESSAGE SKIPPED %d BYTES\n\n", pstart - vRecv.begin());
genesis 2174 vRecv.erase(vRecv.begin(), pstart);
genesis 2175
genesis 2176
genesis 2177 vector<char> vHeaderSave(vRecv.begin(), vRecv.begin() + nHeaderSize);
genesis 2178 CMessageHeader hdr;
genesis 2179 vRecv >> hdr;
genesis 2180 if (!hdr.IsValid())
genesis 2181 {
genesis 2182 printf("\n\nPROCESSMESSAGE: ERRORS IN HEADER %s\n\n\n", hdr.GetCommand().c_str());
genesis 2183 continue;
genesis 2184 }
genesis 2185 string strCommand = hdr.GetCommand();
genesis 2186
genesis 2187
genesis 2188 unsigned int nMessageSize = hdr.nMessageSize;
genesis 2189 if (nMessageSize > MAX_SIZE)
genesis 2190 {
genesis 2191 printf("ProcessMessage(%s, %u bytes) : nMessageSize > MAX_SIZE\n", strCommand.c_str(), nMessageSize);
genesis 2192 continue;
genesis 2193 }
genesis 2194 if (nMessageSize > vRecv.size())
genesis 2195 {
genesis 2196
genesis 2197 vRecv.insert(vRecv.begin(), vHeaderSave.begin(), vHeaderSave.end());
genesis 2198 break;
genesis 2199 }
genesis 2200
genesis 2201
genesis 2202 if (vRecv.GetVersion() >= 209)
genesis 2203 {
genesis 2204 uint256 hash = Hash(vRecv.begin(), vRecv.begin() + nMessageSize);
genesis 2205 unsigned int nChecksum = 0;
genesis 2206 memcpy(&nChecksum, &hash, sizeof(nChecksum));
genesis 2207 if (nChecksum != hdr.nChecksum)
genesis 2208 {
genesis 2209 printf("ProcessMessage(%s, %u bytes) : CHECKSUM ERROR nChecksum=%08x hdr.nChecksum=%08x\n",
genesis 2210 strCommand.c_str(), nMessageSize, nChecksum, hdr.nChecksum);
genesis 2211 continue;
genesis 2212 }
genesis 2213 }
genesis 2214
genesis 2215
genesis 2216 CDataStream vMsg(vRecv.begin(), vRecv.begin() + nMessageSize, vRecv.nType, vRecv.nVersion);
genesis 2217 vRecv.ignore(nMessageSize);
genesis 2218
genesis 2219
genesis 2220 bool fRet = false;
genesis 2221 try
genesis 2222 {
genesis 2223 CRITICAL_BLOCK(cs_main)
genesis 2224 fRet = ProcessMessage(pfrom, strCommand, vMsg);
genesis 2225 if (fShutdown)
genesis 2226 return true;
genesis 2227 }
genesis 2228 catch (std::ios_base::failure& e)
genesis 2229 {
genesis 2230 if (strstr(e.what(), "end of data"))
genesis 2231 {
genesis 2232
genesis 2233 printf("ProcessMessage(%s, %u bytes) : Exception '%s' caught, normally caused by a message being shorter than its stated length\n", strCommand.c_str(), nMessageSize, e.what());
genesis 2234 }
genesis 2235 else if (strstr(e.what(), "size too large"))
genesis 2236 {
genesis 2237
genesis 2238 printf("ProcessMessage(%s, %u bytes) : Exception '%s' caught\n", strCommand.c_str(), nMessageSize, e.what());
genesis 2239 }
genesis 2240 else
genesis 2241 {
genesis 2242 PrintExceptionContinue(&e, "ProcessMessage()");
genesis 2243 }
genesis 2244 }
genesis 2245 catch (std::exception& e) {
genesis 2246 PrintExceptionContinue(&e, "ProcessMessage()");
genesis 2247 } catch (...) {
genesis 2248 PrintExceptionContinue(NULL, "ProcessMessage()");
genesis 2249 }
genesis 2250
genesis 2251 if (!fRet)
genesis 2252 printf("ProcessMessage(%s, %u bytes) FAILED\n", strCommand.c_str(), nMessageSize);
genesis 2253 }
genesis 2254
genesis 2255 vRecv.Compact();
genesis 2256 return true;
genesis 2257 }
genesis 2258
genesis 2259
genesis 2260 bool SendMessages(CNode* pto, bool fSendTrickle)
genesis 2261 {
genesis 2262 CRITICAL_BLOCK(cs_main)
genesis 2263 {
genesis 2264
genesis 2265 if (pto->nVersion == 0)
genesis 2266 return true;
genesis 2267
genesis 2268
genesis 2269 if (pto->nLastSend && GetTime() - pto->nLastSend > 30 * 60 && pto->vSend.empty())
genesis 2270 pto->PushMessage("ping");
genesis 2271
genesis 2272
genesis 2273 ResendWalletTransactions();
genesis 2274
genesis 2275
genesis 2276 static int64 nLastRebroadcast;
genesis 2277 if (GetTime() - nLastRebroadcast > 24 * 60 * 60)
genesis 2278 {
genesis 2279 nLastRebroadcast = GetTime();
genesis 2280 CRITICAL_BLOCK(cs_vNodes)
genesis 2281 {
genesis 2282 BOOST_FOREACH(CNode* pnode, vNodes)
genesis 2283 {
genesis 2284
genesis 2285 pnode->setAddrKnown.clear();
genesis 2286
genesis 2287
genesis 2288 if (addrLocalHost.IsRoutable() && !fUseProxy)
genesis 2289 {
genesis 2290 CAddress addr(addrLocalHost);
genesis 2291 addr.nTime = GetAdjustedTime();
genesis 2292 pnode->PushAddress(addr);
genesis 2293 }
genesis 2294 }
genesis 2295 }
genesis 2296 }
genesis 2297
genesis 2298
genesis 2299 static int64 nLastClear;
genesis 2300 if (nLastClear == 0)
genesis 2301 nLastClear = GetTime();
genesis 2302 if (GetTime() - nLastClear > 10 * 60 && vNodes.size() >= 3)
genesis 2303 {
genesis 2304 nLastClear = GetTime();
genesis 2305 CRITICAL_BLOCK(cs_mapAddresses)
genesis 2306 {
genesis 2307 CAddrDB addrdb;
genesis 2308 int64 nSince = GetAdjustedTime() - 14 * 24 * 60 * 60;
genesis 2309 for (map<vector<unsigned char>, CAddress>::iterator mi = mapAddresses.begin();
genesis 2310 mi != mapAddresses.end();)
genesis 2311 {
genesis 2312 const CAddress& addr = (*mi).second;
genesis 2313 if (addr.nTime < nSince)
genesis 2314 {
genesis 2315 if (mapAddresses.size() < 1000 || GetTime() > nLastClear + 20)
genesis 2316 break;
genesis 2317 addrdb.EraseAddress(addr);
genesis 2318 mapAddresses.erase(mi++);
genesis 2319 }
genesis 2320 else
genesis 2321 mi++;
genesis 2322 }
genesis 2323 }
genesis 2324 }
genesis 2325
genesis 2326
genesis 2327
genesis 2328
genesis 2329
genesis 2330 if (fSendTrickle)
genesis 2331 {
genesis 2332 vector<CAddress> vAddr;
genesis 2333 vAddr.reserve(pto->vAddrToSend.size());
genesis 2334 BOOST_FOREACH(const CAddress& addr, pto->vAddrToSend)
genesis 2335 {
genesis 2336
genesis 2337 if (pto->setAddrKnown.insert(addr).second)
genesis 2338 {
genesis 2339 vAddr.push_back(addr);
genesis 2340
genesis 2341 if (vAddr.size() >= 1000)
genesis 2342 {
genesis 2343 pto->PushMessage("addr", vAddr);
genesis 2344 vAddr.clear();
genesis 2345 }
genesis 2346 }
genesis 2347 }
genesis 2348 pto->vAddrToSend.clear();
genesis 2349 if (!vAddr.empty())
genesis 2350 pto->PushMessage("addr", vAddr);
genesis 2351 }
genesis 2352
genesis 2353
genesis 2354
genesis 2355
genesis 2356
genesis 2357 vector<CInv> vInv;
genesis 2358 vector<CInv> vInvWait;
genesis 2359 CRITICAL_BLOCK(pto->cs_inventory)
genesis 2360 {
genesis 2361 vInv.reserve(pto->vInventoryToSend.size());
genesis 2362 vInvWait.reserve(pto->vInventoryToSend.size());
genesis 2363 BOOST_FOREACH(const CInv& inv, pto->vInventoryToSend)
genesis 2364 {
genesis 2365 if (pto->setInventoryKnown.count(inv))
genesis 2366 continue;
genesis 2367
genesis 2368
genesis 2369 if (inv.type == MSG_TX && !fSendTrickle)
genesis 2370 {
genesis 2371
genesis 2372 static uint256 hashSalt;
genesis 2373 if (hashSalt == 0)
genesis 2374 RAND_bytes((unsigned char*)&hashSalt, sizeof(hashSalt));
genesis 2375 uint256 hashRand = inv.hash ^ hashSalt;
genesis 2376 hashRand = Hash(BEGIN(hashRand), END(hashRand));
genesis 2377 bool fTrickleWait = ((hashRand & 3) != 0);
genesis 2378
genesis 2379
genesis 2380 if (!fTrickleWait)
genesis 2381 {
genesis 2382 CWalletTx wtx;
genesis 2383 if (GetTransaction(inv.hash, wtx))
genesis 2384 if (wtx.fFromMe)
genesis 2385 fTrickleWait = true;
genesis 2386 }
genesis 2387
genesis 2388 if (fTrickleWait)
genesis 2389 {
genesis 2390 vInvWait.push_back(inv);
genesis 2391 continue;
genesis 2392 }
genesis 2393 }
genesis 2394
genesis 2395
genesis 2396 if (pto->setInventoryKnown.insert(inv).second)
genesis 2397 {
genesis 2398 vInv.push_back(inv);
genesis 2399 if (vInv.size() >= 1000)
genesis 2400 {
genesis 2401 pto->PushMessage("inv", vInv);
genesis 2402 vInv.clear();
genesis 2403 }
genesis 2404 }
genesis 2405 }
genesis 2406 pto->vInventoryToSend = vInvWait;
genesis 2407 }
genesis 2408 if (!vInv.empty())
genesis 2409 pto->PushMessage("inv", vInv);
genesis 2410
genesis 2411
genesis 2412
genesis 2413
genesis 2414
genesis 2415 vector<CInv> vGetData;
genesis 2416 int64 nNow = GetTime() * 1000000;
genesis 2417 CTxDB txdb("r");
genesis 2418 while (!pto->mapAskFor.empty() && (*pto->mapAskFor.begin()).first <= nNow)
genesis 2419 {
genesis 2420 const CInv& inv = (*pto->mapAskFor.begin()).second;
genesis 2421 if (!AlreadyHave(txdb, inv))
genesis 2422 {
genesis 2423 printf("sending getdata: %s\n", inv.ToString().c_str());
genesis 2424 vGetData.push_back(inv);
genesis 2425 if (vGetData.size() >= 1000)
genesis 2426 {
genesis 2427 pto->PushMessage("getdata", vGetData);
genesis 2428 vGetData.clear();
genesis 2429 }
genesis 2430 }
genesis 2431 mapAlreadyAskedFor[inv] = nNow;
genesis 2432 pto->mapAskFor.erase(pto->mapAskFor.begin());
genesis 2433 }
genesis 2434 if (!vGetData.empty())
genesis 2435 pto->PushMessage("getdata", vGetData);
genesis 2436
genesis 2437 }
genesis 2438 return true;
genesis 2439 }
genesis 2440
genesis 2441
genesis 2442
genesis 2443
genesis 2444
genesis 2445
genesis 2446
genesis 2447
genesis 2448
genesis 2449
genesis 2450
genesis 2451
genesis 2452
genesis 2453
genesis 2454
genesis 2455
genesis 2456
genesis 2457
genesis 2458
genesis 2459 int static FormatHashBlocks(void* pbuffer, unsigned int len)
genesis 2460 {
genesis 2461 unsigned char* pdata = (unsigned char*)pbuffer;
genesis 2462 unsigned int blocks = 1 + ((len + 8) / 64);
genesis 2463 unsigned char* pend = pdata + 64 * blocks;
genesis 2464 memset(pdata + len, 0, 64 * blocks - len);
genesis 2465 pdata[len] = 0x80;
genesis 2466 unsigned int bits = len * 8;
genesis 2467 pend[-1] = (bits >> 0) & 0xff;
genesis 2468 pend[-2] = (bits >> 8) & 0xff;
genesis 2469 pend[-3] = (bits >> 16) & 0xff;
genesis 2470 pend[-4] = (bits >> 24) & 0xff;
genesis 2471 return blocks;
genesis 2472 }
genesis 2473
genesis 2474 static const unsigned int pSHA256InitState[8] =
genesis 2475 {0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a, 0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19};
genesis 2476
genesis 2477 void SHA256Transform(void* pstate, void* pinput, const void* pinit)
genesis 2478 {
genesis 2479 SHA256_CTX ctx;
genesis 2480 unsigned char data[64];
genesis 2481
genesis 2482 SHA256_Init(&ctx);
genesis 2483
genesis 2484 for (int i = 0; i < 16; i++)
genesis 2485 ((uint32_t*)data)[i] = ByteReverse(((uint32_t*)pinput)[i]);
genesis 2486
genesis 2487 for (int i = 0; i < 8; i++)
genesis 2488 ctx.h[i] = ((uint32_t*)pinit)[i];
genesis 2489
genesis 2490 SHA256_Update(&ctx, data, sizeof(data));
genesis 2491 for (int i = 0; i < 8; i++)
genesis 2492 ((uint32_t*)pstate)[i] = ctx.h[i];
genesis 2493 }
genesis 2494
genesis 2495
genesis 2496
genesis 2497
genesis 2498
genesis 2499
genesis 2500
genesis 2501
genesis 2502 unsigned int static ScanHash_CryptoPP(char* pmidstate, char* pdata, char* phash1, char* phash, unsigned int& nHashesDone)
genesis 2503 {
genesis 2504 unsigned int& nNonce = *(unsigned int*)(pdata + 12);
genesis 2505 for (;;)
genesis 2506 {
genesis 2507
genesis 2508
genesis 2509
genesis 2510 nNonce++;
genesis 2511 SHA256Transform(phash1, pdata, pmidstate);
genesis 2512 SHA256Transform(phash, phash1, pSHA256InitState);
genesis 2513
genesis 2514
genesis 2515
genesis 2516 if (((unsigned short*)phash)[14] == 0)
genesis 2517 return nNonce;
genesis 2518
genesis 2519
genesis 2520 if ((nNonce & 0xffff) == 0)
genesis 2521 {
genesis 2522 nHashesDone = 0xffff+1;
genesis 2523 return -1;
genesis 2524 }
genesis 2525 }
genesis 2526 }
genesis 2527
genesis 2528
genesis 2529 class COrphan
genesis 2530 {
genesis 2531 public:
genesis 2532 CTransaction* ptx;
genesis 2533 set<uint256> setDependsOn;
genesis 2534 double dPriority;
genesis 2535
genesis 2536 COrphan(CTransaction* ptxIn)
genesis 2537 {
genesis 2538 ptx = ptxIn;
genesis 2539 dPriority = 0;
genesis 2540 }
genesis 2541
genesis 2542 void print() const
genesis 2543 {
mod6_excise_hash_... 2544 printf("COrphan(hash=%s, dPriority=%.1f)\n", ptx->GetHash().ToString().c_str(), dPriority);
genesis 2545 BOOST_FOREACH(uint256 hash, setDependsOn)
mod6_excise_hash_... 2546 printf(" setDependsOn %s\n", hash.ToString().c_str());
genesis 2547 }
genesis 2548 };
genesis 2549
genesis 2550
genesis 2551 CBlock* CreateNewBlock(CReserveKey& reservekey)
genesis 2552 {
genesis 2553 CBlockIndex* pindexPrev = pindexBest;
genesis 2554
genesis 2555
genesis 2556 auto_ptr<CBlock> pblock(new CBlock());
genesis 2557 if (!pblock.get())
genesis 2558 return NULL;
genesis 2559
genesis 2560
genesis 2561 CTransaction txNew;
genesis 2562 txNew.vin.resize(1);
genesis 2563 txNew.vin[0].prevout.SetNull();
genesis 2564 txNew.vout.resize(1);
genesis 2565 txNew.vout[0].scriptPubKey << reservekey.GetReservedKey() << OP_CHECKSIG;
genesis 2566
genesis 2567
genesis 2568 pblock->vtx.push_back(txNew);
genesis 2569
genesis 2570
genesis 2571 int64 nFees = 0;
genesis 2572 CRITICAL_BLOCK(cs_main)
genesis 2573 CRITICAL_BLOCK(cs_mapTransactions)
genesis 2574 {
genesis 2575 CTxDB txdb("r");
genesis 2576
genesis 2577
genesis 2578 list<COrphan> vOrphan;
genesis 2579 map<uint256, vector<COrphan*> > mapDependers;
genesis 2580 multimap<double, CTransaction*> mapPriority;
genesis 2581 for (map<uint256, CTransaction>::iterator mi = mapTransactions.begin(); mi != mapTransactions.end(); ++mi)
genesis 2582 {
genesis 2583 CTransaction& tx = (*mi).second;
genesis 2584 if (tx.IsCoinBase() || !tx.IsFinal())
genesis 2585 continue;
genesis 2586
genesis 2587 COrphan* porphan = NULL;
genesis 2588 double dPriority = 0;
genesis 2589 BOOST_FOREACH(const CTxIn& txin, tx.vin)
genesis 2590 {
genesis 2591
genesis 2592 CTransaction txPrev;
genesis 2593 CTxIndex txindex;
genesis 2594 if (!txPrev.ReadFromDisk(txdb, txin.prevout, txindex))
genesis 2595 {
genesis 2596
genesis 2597 if (!porphan)
genesis 2598 {
genesis 2599
genesis 2600 vOrphan.push_back(COrphan(&tx));
genesis 2601 porphan = &vOrphan.back();
genesis 2602 }
genesis 2603 mapDependers[txin.prevout.hash].push_back(porphan);
genesis 2604 porphan->setDependsOn.insert(txin.prevout.hash);
genesis 2605 continue;
genesis 2606 }
genesis 2607 int64 nValueIn = txPrev.vout[txin.prevout.n].nValue;
genesis 2608
genesis 2609
genesis 2610 int nConf = txindex.GetDepthInMainChain();
genesis 2611
genesis 2612 dPriority += (double)nValueIn * nConf;
genesis 2613
genesis 2614 if (fDebug && GetBoolArg("-printpriority"))
genesis 2615 printf("priority nValueIn=%-12I64d nConf=%-5d dPriority=%-20.1f\n", nValueIn, nConf, dPriority);
genesis 2616 }
genesis 2617
genesis 2618
genesis 2619 dPriority /= ::GetSerializeSize(tx, SER_NETWORK);
genesis 2620
genesis 2621 if (porphan)
genesis 2622 porphan->dPriority = dPriority;
genesis 2623 else
genesis 2624 mapPriority.insert(make_pair(-dPriority, &(*mi).second));
genesis 2625
genesis 2626 if (fDebug && GetBoolArg("-printpriority"))
genesis 2627 {
mod6_excise_hash_... 2628 printf("priority %-20.1f %s\n%s", dPriority, tx.GetHash().ToString().c_str(), tx.ToString().c_str());
genesis 2629 if (porphan)
genesis 2630 porphan->print();
genesis 2631 printf("\n");
genesis 2632 }
genesis 2633 }
genesis 2634
genesis 2635
genesis 2636 map<uint256, CTxIndex> mapTestPool;
genesis 2637 uint64 nBlockSize = 1000;
genesis 2638 int nBlockSigOps = 100;
genesis 2639 while (!mapPriority.empty())
genesis 2640 {
genesis 2641
genesis 2642 double dPriority = -(*mapPriority.begin()).first;
genesis 2643 CTransaction& tx = *(*mapPriority.begin()).second;
genesis 2644 mapPriority.erase(mapPriority.begin());
genesis 2645
genesis 2646
genesis 2647 unsigned int nTxSize = ::GetSerializeSize(tx, SER_NETWORK);
genesis 2648 if (nBlockSize + nTxSize >= MAX_BLOCK_SIZE_GEN)
genesis 2649 continue;
genesis 2650 int nTxSigOps = tx.GetSigOpCount();
genesis 2651 if (nBlockSigOps + nTxSigOps >= MAX_BLOCK_SIGOPS)
genesis 2652 continue;
genesis 2653
genesis 2654
genesis 2655 bool fAllowFree = (nBlockSize + nTxSize < 4000 || CTransaction::AllowFree(dPriority));
genesis 2656 int64 nMinFee = tx.GetMinFee(nBlockSize, fAllowFree);
genesis 2657
genesis 2658
genesis 2659
genesis 2660 map<uint256, CTxIndex> mapTestPoolTmp(mapTestPool);
genesis 2661 bool fInvalid;
genesis 2662 if (!tx.ConnectInputs(txdb, mapTestPoolTmp, CDiskTxPos(1,1,1), pindexPrev, nFees, false, true, nMinFee, fInvalid))
genesis 2663 continue;
genesis 2664 swap(mapTestPool, mapTestPoolTmp);
genesis 2665
genesis 2666
genesis 2667 pblock->vtx.push_back(tx);
genesis 2668 nBlockSize += nTxSize;
genesis 2669 nBlockSigOps += nTxSigOps;
genesis 2670
genesis 2671
genesis 2672 uint256 hash = tx.GetHash();
genesis 2673 if (mapDependers.count(hash))
genesis 2674 {
genesis 2675 BOOST_FOREACH(COrphan* porphan, mapDependers[hash])
genesis 2676 {
genesis 2677 if (!porphan->setDependsOn.empty())
genesis 2678 {
genesis 2679 porphan->setDependsOn.erase(hash);
genesis 2680 if (porphan->setDependsOn.empty())
genesis 2681 mapPriority.insert(make_pair(-porphan->dPriority, porphan->ptx));
genesis 2682 }
genesis 2683 }
genesis 2684 }
genesis 2685 }
genesis 2686 }
genesis 2687 pblock->vtx[0].vout[0].nValue = GetBlockValue(pindexPrev->nHeight+1, nFees);
genesis 2688
genesis 2689
genesis 2690 pblock->hashPrevBlock = pindexPrev->GetBlockHash();
genesis 2691 pblock->hashMerkleRoot = pblock->BuildMerkleTree();
genesis 2692 pblock->nTime = max(pindexPrev->GetMedianTimePast()+1, GetAdjustedTime());
genesis 2693 pblock->nBits = GetNextWorkRequired(pindexPrev, pblock.get());
genesis 2694 pblock->nNonce = 0;
genesis 2695
genesis 2696 return pblock.release();
genesis 2697 }
genesis 2698
genesis 2699
genesis 2700 void IncrementExtraNonce(CBlock* pblock, CBlockIndex* pindexPrev, unsigned int& nExtraNonce)
genesis 2701 {
genesis 2702
genesis 2703 static uint256 hashPrevBlock;
genesis 2704 if (hashPrevBlock != pblock->hashPrevBlock)
genesis 2705 {
genesis 2706 nExtraNonce = 0;
genesis 2707 hashPrevBlock = pblock->hashPrevBlock;
genesis 2708 }
genesis 2709 ++nExtraNonce;
genesis 2710 pblock->vtx[0].vin[0].scriptSig = CScript() << pblock->nTime << CBigNum(nExtraNonce);
genesis 2711 pblock->hashMerkleRoot = pblock->BuildMerkleTree();
genesis 2712 }
genesis 2713
genesis 2714
genesis 2715 void FormatHashBuffers(CBlock* pblock, char* pmidstate, char* pdata, char* phash1)
genesis 2716 {
genesis 2717
genesis 2718
genesis 2719
genesis 2720 struct
genesis 2721 {
genesis 2722 struct unnamed2
genesis 2723 {
genesis 2724 int nVersion;
genesis 2725 uint256 hashPrevBlock;
genesis 2726 uint256 hashMerkleRoot;
genesis 2727 unsigned int nTime;
genesis 2728 unsigned int nBits;
genesis 2729 unsigned int nNonce;
genesis 2730 }
genesis 2731 block;
genesis 2732 unsigned char pchPadding0[64];
genesis 2733 uint256 hash1;
genesis 2734 unsigned char pchPadding1[64];
genesis 2735 }
genesis 2736 tmp;
genesis 2737 memset(&tmp, 0, sizeof(tmp));
genesis 2738
genesis 2739 tmp.block.nVersion = pblock->nVersion;
genesis 2740 tmp.block.hashPrevBlock = pblock->hashPrevBlock;
genesis 2741 tmp.block.hashMerkleRoot = pblock->hashMerkleRoot;
genesis 2742 tmp.block.nTime = pblock->nTime;
genesis 2743 tmp.block.nBits = pblock->nBits;
genesis 2744 tmp.block.nNonce = pblock->nNonce;
genesis 2745
genesis 2746 FormatHashBlocks(&tmp.block, sizeof(tmp.block));
genesis 2747 FormatHashBlocks(&tmp.hash1, sizeof(tmp.hash1));
genesis 2748
genesis 2749
genesis 2750 for (int i = 0; i < sizeof(tmp)/4; i++)
genesis 2751 ((unsigned int*)&tmp)[i] = ByteReverse(((unsigned int*)&tmp)[i]);
genesis 2752
genesis 2753
genesis 2754 SHA256Transform(pmidstate, &tmp.block, pSHA256InitState);
genesis 2755
genesis 2756 memcpy(pdata, &tmp.block, 128);
genesis 2757 memcpy(phash1, &tmp.hash1, 64);
genesis 2758 }
genesis 2759
genesis 2760
genesis 2761 bool CheckWork(CBlock* pblock, CWallet& wallet, CReserveKey& reservekey)
genesis 2762 {
genesis 2763 uint256 hash = pblock->GetHash();
genesis 2764 uint256 hashTarget = CBigNum().SetCompact(pblock->nBits).getuint256();
genesis 2765
genesis 2766 if (hash > hashTarget)
genesis 2767 return false;
genesis 2768
genesis 2769
genesis 2770 printf("BitcoinMiner:\n");
genesis 2771 printf("proof-of-work found \n hash: %s \ntarget: %s\n", hash.GetHex().c_str(), hashTarget.GetHex().c_str());
genesis 2772 pblock->print();
genesis 2773 printf("%s ", DateTimeStrFormat("%x %H:%M", GetTime()).c_str());
genesis 2774 printf("generated %s\n", FormatMoney(pblock->vtx[0].vout[0].nValue).c_str());
genesis 2775
genesis 2776
genesis 2777 CRITICAL_BLOCK(cs_main)
genesis 2778 {
genesis 2779 if (pblock->hashPrevBlock != hashBestChain)
genesis 2780 return error("BitcoinMiner : generated block is stale");
genesis 2781
genesis 2782
genesis 2783 reservekey.KeepKey();
genesis 2784
genesis 2785
genesis 2786 CRITICAL_BLOCK(wallet.cs_wallet)
genesis 2787 wallet.mapRequestCount[pblock->GetHash()] = 0;
genesis 2788
genesis 2789
genesis 2790 if (!ProcessBlock(NULL, pblock))
genesis 2791 return error("BitcoinMiner : ProcessBlock, block not accepted");
genesis 2792 }
genesis 2793
genesis 2794 return true;
genesis 2795 }
genesis 2796
genesis 2797 void static ThreadBitcoinMiner(void* parg);
genesis 2798
genesis 2799 void static BitcoinMiner(CWallet *pwallet)
genesis 2800 {
genesis 2801 printf("BitcoinMiner started\n");
genesis 2802 SetThreadPriority(THREAD_PRIORITY_LOWEST);
genesis 2803
genesis 2804
genesis 2805 CReserveKey reservekey(pwallet);
genesis 2806 unsigned int nExtraNonce = 0;
genesis 2807
genesis 2808 while (fGenerateBitcoins)
genesis 2809 {
genesis 2810 if (AffinityBugWorkaround(ThreadBitcoinMiner))
genesis 2811 return;
genesis 2812 if (fShutdown)
genesis 2813 return;
genesis 2814 while (vNodes.empty() || IsInitialBlockDownload())
genesis 2815 {
genesis 2816 Sleep(1000);
genesis 2817 if (fShutdown)
genesis 2818 return;
genesis 2819 if (!fGenerateBitcoins)
genesis 2820 return;
genesis 2821 }
genesis 2822
genesis 2823
genesis 2824
genesis 2825
genesis 2826
genesis 2827 unsigned int nTransactionsUpdatedLast = nTransactionsUpdated;
genesis 2828 CBlockIndex* pindexPrev = pindexBest;
genesis 2829
genesis 2830 auto_ptr<CBlock> pblock(CreateNewBlock(reservekey));
genesis 2831 if (!pblock.get())
genesis 2832 return;
genesis 2833 IncrementExtraNonce(pblock.get(), pindexPrev, nExtraNonce);
genesis 2834
genesis 2835 printf("Running BitcoinMiner with %d transactions in block\n", pblock->vtx.size());
genesis 2836
genesis 2837
genesis 2838
genesis 2839
genesis 2840
genesis 2841 char pmidstatebuf[32+16]; char* pmidstate = alignup<16>(pmidstatebuf);
genesis 2842 char pdatabuf[128+16]; char* pdata = alignup<16>(pdatabuf);
genesis 2843 char phash1buf[64+16]; char* phash1 = alignup<16>(phash1buf);
genesis 2844
genesis 2845 FormatHashBuffers(pblock.get(), pmidstate, pdata, phash1);
genesis 2846
genesis 2847 unsigned int& nBlockTime = *(unsigned int*)(pdata + 64 + 4);
genesis 2848 unsigned int& nBlockNonce = *(unsigned int*)(pdata + 64 + 12);
genesis 2849
genesis 2850
genesis 2851
genesis 2852
genesis 2853
genesis 2854 int64 nStart = GetTime();
genesis 2855 uint256 hashTarget = CBigNum().SetCompact(pblock->nBits).getuint256();
genesis 2856 uint256 hashbuf[2];
genesis 2857 uint256& hash = *alignup<16>(hashbuf);
genesis 2858 loop
genesis 2859 {
genesis 2860 unsigned int nHashesDone = 0;
genesis 2861 unsigned int nNonceFound;
genesis 2862
genesis 2863
genesis 2864 nNonceFound = ScanHash_CryptoPP(pmidstate, pdata + 64, phash1,
genesis 2865 (char*)&hash, nHashesDone);
genesis 2866
genesis 2867
genesis 2868 if (nNonceFound != -1)
genesis 2869 {
genesis 2870 for (int i = 0; i < sizeof(hash)/4; i++)
genesis 2871 ((unsigned int*)&hash)[i] = ByteReverse(((unsigned int*)&hash)[i]);
genesis 2872
genesis 2873 if (hash <= hashTarget)
genesis 2874 {
genesis 2875
genesis 2876 pblock->nNonce = ByteReverse(nNonceFound);
genesis 2877 assert(hash == pblock->GetHash());
genesis 2878
genesis 2879 SetThreadPriority(THREAD_PRIORITY_NORMAL);
genesis 2880 CheckWork(pblock.get(), *pwalletMain, reservekey);
genesis 2881 SetThreadPriority(THREAD_PRIORITY_LOWEST);
genesis 2882 break;
genesis 2883 }
genesis 2884 }
genesis 2885
genesis 2886
genesis 2887 static int64 nHashCounter;
genesis 2888 if (nHPSTimerStart == 0)
genesis 2889 {
genesis 2890 nHPSTimerStart = GetTimeMillis();
genesis 2891 nHashCounter = 0;
genesis 2892 }
genesis 2893 else
genesis 2894 nHashCounter += nHashesDone;
genesis 2895 if (GetTimeMillis() - nHPSTimerStart > 4000)
genesis 2896 {
genesis 2897 static CCriticalSection cs;
genesis 2898 CRITICAL_BLOCK(cs)
genesis 2899 {
genesis 2900 if (GetTimeMillis() - nHPSTimerStart > 4000)
genesis 2901 {
genesis 2902 dHashesPerSec = 1000.0 * nHashCounter / (GetTimeMillis() - nHPSTimerStart);
genesis 2903 nHPSTimerStart = GetTimeMillis();
genesis 2904 nHashCounter = 0;
genesis 2905 string strStatus = strprintf(" %.0f khash/s", dHashesPerSec/1000.0);
genesis 2906 UIThreadCall(boost::bind(CalledSetStatusBar, strStatus, 0));
genesis 2907 static int64 nLogTime;
genesis 2908 if (GetTime() - nLogTime > 30 * 60)
genesis 2909 {
genesis 2910 nLogTime = GetTime();
genesis 2911 printf("%s ", DateTimeStrFormat("%x %H:%M", GetTime()).c_str());
genesis 2912 printf("hashmeter %3d CPUs %6.0f khash/s\n", vnThreadsRunning[3], dHashesPerSec/1000.0);
genesis 2913 }
genesis 2914 }
genesis 2915 }
genesis 2916 }
genesis 2917
genesis 2918
genesis 2919 if (fShutdown)
genesis 2920 return;
genesis 2921 if (!fGenerateBitcoins)
genesis 2922 return;
genesis 2923 if (fLimitProcessors && vnThreadsRunning[3] > nLimitProcessors)
genesis 2924 return;
genesis 2925 if (vNodes.empty())
genesis 2926 break;
genesis 2927 if (nBlockNonce >= 0xffff0000)
genesis 2928 break;
genesis 2929 if (nTransactionsUpdated != nTransactionsUpdatedLast && GetTime() - nStart > 60)
genesis 2930 break;
genesis 2931 if (pindexPrev != pindexBest)
genesis 2932 break;
genesis 2933
genesis 2934
genesis 2935 pblock->nTime = max(pindexPrev->GetMedianTimePast()+1, GetAdjustedTime());
genesis 2936 nBlockTime = ByteReverse(pblock->nTime);
genesis 2937 }
genesis 2938 }
genesis 2939 }
genesis 2940
genesis 2941 void static ThreadBitcoinMiner(void* parg)
genesis 2942 {
genesis 2943 CWallet* pwallet = (CWallet*)parg;
genesis 2944 try
genesis 2945 {
genesis 2946 vnThreadsRunning[3]++;
genesis 2947 BitcoinMiner(pwallet);
genesis 2948 vnThreadsRunning[3]--;
genesis 2949 }
genesis 2950 catch (std::exception& e) {
genesis 2951 vnThreadsRunning[3]--;
genesis 2952 PrintException(&e, "ThreadBitcoinMiner()");
genesis 2953 } catch (...) {
genesis 2954 vnThreadsRunning[3]--;
genesis 2955 PrintException(NULL, "ThreadBitcoinMiner()");
genesis 2956 }
genesis 2957 UIThreadCall(boost::bind(CalledSetStatusBar, "", 0));
genesis 2958 nHPSTimerStart = 0;
genesis 2959 if (vnThreadsRunning[3] == 0)
genesis 2960 dHashesPerSec = 0;
genesis 2961 printf("ThreadBitcoinMiner exiting, %d threads remaining\n", vnThreadsRunning[3]);
genesis 2962 }
genesis 2963
genesis 2964
genesis 2965 void GenerateBitcoins(bool fGenerate, CWallet* pwallet)
genesis 2966 {
genesis 2967 if (fGenerateBitcoins != fGenerate)
genesis 2968 {
genesis 2969 fGenerateBitcoins = fGenerate;
genesis 2970 WriteSetting("fGenerateBitcoins", fGenerateBitcoins);
genesis 2971 MainFrameRepaint();
genesis 2972 }
genesis 2973 if (fGenerateBitcoins)
genesis 2974 {
genesis 2975 int nProcessors = boost::thread::hardware_concurrency();
genesis 2976 printf("%d processors\n", nProcessors);
genesis 2977 if (nProcessors < 1)
genesis 2978 nProcessors = 1;
genesis 2979 if (fLimitProcessors && nProcessors > nLimitProcessors)
genesis 2980 nProcessors = nLimitProcessors;
genesis 2981 int nAddThreads = nProcessors - vnThreadsRunning[3];
genesis 2982 printf("Starting %d BitcoinMiner threads\n", nAddThreads);
genesis 2983 for (int i = 0; i < nAddThreads; i++)
genesis 2984 {
genesis 2985 if (!CreateThread(ThreadBitcoinMiner, pwallet))
genesis 2986 printf("Error: CreateThread(ThreadBitcoinMiner) failed\n");
genesis 2987 Sleep(10);
genesis 2988 }
genesis 2989 }
genesis 2990 }